QPT 4008 380KV Brushless Motor for UAV Drones – High Efficiency Long-Endurance Multi-Rotor Motor

Product Overview

The QPT 4008 380KV Brushless Motor is a high-performance UAV propulsion solution engineered for professional multi-rotor drones, aerial photography platforms, industrial inspection systems, mapping drones, and long-endurance VTOL applications. Designed for efficient low-RPM operation and high torque output, this motor delivers exceptional flight stability, reliability, and power efficiency.

Optimized for 4S to 6S LiPo batteries and compatible with 14-inch to 18-inch propellers, the QPT 4008 380KV motor provides up to 2.6kg of maximum thrust, making it an excellent choice for drone platforms with an all-up weight (AUW) of approximately 2kg to 5kg in quadcopter configurations.

Built using premium N52SH magnets, a durable 18N24P configuration, and high-quality silicone motor wires, the motor offers smooth performance, low vibration, and extended operational life for demanding UAV missions.

Key Features

High-Efficiency 380KV Design

Optimized for low-RPM and high-torque performance, delivering excellent efficiency and stable flight characteristics.

Up to 2.6kg Maximum Thrust

Capable of generating substantial lifting power for professional drone applications and payload carrying missions.

Long-Endurance Flight Performance

Designed to maximize flight time while maintaining stable thrust output and low power consumption.

Premium N52SH Magnets

High-grade magnets provide stronger magnetic flux, improved efficiency, and reliable performance under continuous operation.

Professional UAV Applications

Suitable for aerial imaging, industrial inspections, mapping missions, surveillance operations, and VTOL platforms.

Wide Propeller Compatibility

Optimized for 14-inch to 18-inch bi-blade propellers to achieve maximum efficiency and thrust.

Low Vibration Operation

Precision-balanced construction minimizes vibrations, improving flight stability and image quality.

Durable Construction

Built for long-term reliability in commercial and industrial UAV deployments.

Applications

Aerial Photography & Cinematography

Provides smooth and stable flight performance for drones carrying mirrorless cameras, action cameras, and lightweight gimbal systems.

Industrial Inspection

Ideal for infrastructure inspection, power line monitoring, solar farm inspection, and industrial surveying.

Mapping & Surveying Drones

Efficient power delivery supports long-duration flights required for mapping and photogrammetry missions.

Surveillance & Monitoring

Reliable low-vibration operation ensures steady performance for security and monitoring applications.

Light Payload Delivery

Supports payload capacities ranging from approximately 700g to 1300g per rotor, depending on aircraft configuration.

VTOL UAV Platforms

Perfect for long-endurance VTOL systems requiring efficient hover and cruise performance.

Performance Benefits

• High thrust-to-weight ratio
• Excellent flight efficiency
• Extended flight endurance
• Smooth and stable operation
• Reduced vibration levels
• Reliable thermal performance
• Optimized for professional UAV applications
• Suitable for heavy-lift and mapping platforms

Technical Specifications

Parameter	Specification
Model	QPT 4008
KV Rating	380KV
Motor Type	Brushless Outrunner Motor
Operating Voltage	4S–6S LiPo
Recommended Voltage	6S LiPo
No Load Current	0.6A @ 20V
Maximum Thrust	Up to 2600g
Maximum RPM	5000 RPM
Configuration	18N24P
Magnet Type	N52SH
Motor Cable	18 AWG Silicone Cable
Recommended Propeller Size	14″–18″ Bi-Blade
Recommended Payload	700g–1300g Per Rotor
Motor Weight	Approx. 87g
Application Type	Multi-Rotor UAV Platforms

Performance Highlights (6S LiPo + 16×5.4 Propeller)

Throttle	Thrust	Current	Input Power
50%	698g	2.59A	62.3W
60%	1036g	4.44A	106.6W
70%	1298g	6.21A	148.9W
80%	1598g	8.49A	203.3W
90%	1902g	11.19A	267.4W
100%	2212g	14.68A	349.8W

Maximum tested thrust reaches approximately 2600g with an 18×6.1 propeller under optimized conditions.

Why Choose the QPT 4008 380KV Motor?

The QPT 4008 380KV is engineered for drone builders and UAV professionals seeking an optimal combination of efficiency, thrust, and endurance. Whether you’re building a mapping drone, industrial inspection platform, aerial photography rig, or long-range VTOL aircraft, this motor delivers dependable performance, smooth operation, and excellent power efficiency for demanding missions.