Scorpion HK5 4026 545KV Brushless Motor (6x32mm shaft)

The Scorpion HK5-4026-545KV is part of Scorpion’s fifth-generation HK5 Series — developed from their award-winning helicopter motor platform and engineered for high power, high efficiency, and cooler operating temperatures under load.

The HK5 Series focuses on delivering excellent torque-per-amp performance while improving thermal management. A redesigned internal fan combined with Scorpion’s proven external centrifugal fan increases airflow through the motor for improved cooling and more consistent performance during demanding flights.

This 545KV version is designed for 550–580 class helicopters running on 12S LiPo setups (and similar UAV applications) requiring up to 4218W peak power. The 6×32mm shaft version is ideal when your heli mount/gear supports a 6mm shaft configuration.

Key Features

• Fifth-generation Scorpion HK5 Series high-performance helicopter motor platform
• High torque-per-amp design for strong output with efficient current usage
• Enhanced cooling via redesigned internal fan + external centrifugal fan
• Optimized for 12S power systems in 550–580 size helicopters
• Up to 95A peak and 4218W peak power (2 seconds)