WLtoys XK X450 Rear ESC Board Set Speed Controller for Brushless VTOL Plane

Restore Tail Motor Thrust, Fix Pitch Instability, and Prevent Mid-Air Stalls

A failed, overheated, or moisture-damaged rear Electronic Speed Controller (ESC) on your WLtoys XK X450 Brushless VTOL Aircraft causes severe tail motor stutter, rear power loss, or sudden altitude drops during hover mode. The rear brushless motor plays a vital role in maintaining pitch stability and multirotor hover balance; if the rear ESC burns out or experiences thermal throttling, the aircraft loses its ability to stay level, leading to tail dips or unrecoverable crashes. Replacing it with an uncalibrated third-party ESC disrupts the factory flight controller's throttle mixing algorithm. This official WLtoys XK X450 Rear ESC delivers a direct, plug-and-play factory replacement. Pre-programmed with precise motor timing for the tail brushless unit, it restores instant throttle response, smooth tail lift, and rock-solid 3D/6G flight control.

Compatibility

• Model: WLtoys XK X450 (VTOL RC airplane)

• Main product link: WLtoys XK X450 2.4G 6CH 3D/6G Brushless VTOL

What’s in the Box

• 1× WLtoys XK X450 Rear ESC

More Spare Parts & Accessories

Find exact-fit props, wheels, servos and more in the dedicated parts collection:

https://kadstoylover.com/collections/wltoys-xk-x450-6ch-brushless-airplane-spare-parts

Key Features

• Calibrated Tail Motor Throttle Curve: Pre-programmed firmware specifically tuned for the rear brushless motor to ensure seamless integration with the 6-axis flight gyro.

• Stable High-Current MOSFET Output: Handles continuous power loads and sudden throttle bursts during VTOL hovering without thermal shutdown or signal desync.

• Compact Lightweight PCB Layout: Fits neatly into the rear internal fuselage compartment without altering the tail section's critical center of gravity.

• Solder-Free Plug-and-Play Connectors: Comes pre-fitted with original bullet connectors and receiver socket lead for fast, hassle-free installation.

Installation Tips

• Accessing Internal Bay: Carefully open the central/rear fuselage hatch on your WLtoys XK X450 and disconnect the damaged rear ESC from the mainboard and tail motor.

• Seating Replacement ESC: Secure the WLtoys XK X450 Rear ESC into the dedicated rear mounting bay using double-sided mounting foam or factory clips.

• Connecting Motor Bullet Leads: Plug the rear brushless motor leads firmly into the ESC output bullet sockets, ensuring correct connector engagement.

• Pre-Flight Throttle & Rotation Check: Power up the transmitter and airplane, gently advance the throttle in hover mode, and verify that the rear motor spins smoothly with zero stuttering before closing the fuselage.