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Scorpion Tribunus A-7445-140kv Drone Motor

₹84,469.00 (Inclusive of all taxes)
Out of Stock

The Scorpion Tribunus A-7445-140kv is a high-power, low-KV brushless motor engineered for heavy-lift UAVs and large-scale aerobatic aircraft, offering up to 10,000W of output power and compatibility with 2S to 7S LiPo battery systems.

Features

  • 140KV rating optimized for high-torque, low-RPM applications on large multirotors and fixed-wing UAVs.
  • Delivers up to 10,000W peak power, designed to replace 150cc–170cc internal combustion engines.
  • Constructed with 0.2mm silicon steel stator laminations and high-temperature enamel-coated copper windings for maximum efficiency and thermal resilience.
  • Features an 8mm shaft diameter and a 14-pole design for smooth, reliable operation under heavy loads.
  • Ideal for airframes in the 15–25kg (acrobatic) to 21.5–64kg (UAV/sport) weight range.

Out of stock

Description

The Scorpion Tribunus A-7445-140kv motor represents a pinnacle in electric propulsion for demanding aerial platforms. Its engineering prioritizes thermal management and structural integrity, utilizing premium materials like thin-gauge silicon steel and high-temp windings to sustain continuous high-current operation. The optimized rotor magnet layout minimizes electrical losses, translating battery energy directly into usable mechanical thrust.

Designed for integration with high-current ESCs like the Tribunus III series, this motor requires careful attention to cable length and cooling airflow to achieve its full performance potential and maintain warranty coverage. It is a cornerstone component for builders of heavy-lift cinematography drones, agricultural sprayer UAVs, and large-scale aerobatic model aircraft where reliability and raw power are non-negotiable.

Key Features

  • High-Power Density: 10,000W maximum power output from a compact 74x75mm form factor, offering an exceptional power-to-weight ratio for its class.
  • Advanced Thermal Design: High-temperature enamel-coated copper windings rated over 200°C ensure long-term durability and resistance to thermal degradation.
  • Precision Stator Construction: 0.2mm silicon steel stator laminations reduce eddy current losses, improving efficiency and reducing operational heat.
  • Optimized Magnetic Circuit: 14-pole rotor design with an optimized magnet layout for smooth torque delivery and peak operational efficiency.
  • Heavy-Duty Mechanicals: Robust 8mm output shaft provides the strength required for large propellers and high-inertia loads.
  • Broad Voltage Compatibility: Supports a wide 2S to 7S LiPo input range (7.4V–25.9V), offering flexibility for various power system configurations.

Applications

  • Heavy-lift cinematography and survey drones requiring stable flight with heavy camera gimbals and sensors.
  • Agricultural UAV platforms for crop spraying or sensor payloads in the 20-65kg all-up weight range.
  • Large-scale aerobatic and 3D fixed-wing aircraft designed as electric replacements for 150-170cc gas engines.
  • Industrial inspection and cargo delivery UAVs where high torque and reliable power are critical.
  • High-performance sport and competition UAVs in the 15-25kg acrobatic class.

Technical Specifications

Motor KV140 KV
Motor TypeBrushless Outrunner
Compatible Battery2S to 7S LiPo
Shaft Diameter8 mm
Max Efficiency Current80 – 90 A
Max Power10,000 W
Maximum Thrust9000 to 10,000 g
No-load Current1.8 to 2.5 A
Number of Poles14
Dimensions (WxL)74 x 75 mm
Weight1876 g

Frequently Asked Questions

What is the recommended ESC for the Scorpion Tribunus A-7445-140kv motor?

Scorpion recommends pairing this motor with their Tribunus III 14-220A ESC for optimal performance and warranty coverage. It is critical to manage battery lead length and ensure adequate cooling airflow to the ESC and motor to handle the high current loads, which can reach 80-90A at peak efficiency.

What size and type of propeller is suitable for this 140KV motor?

This low-KV motor is designed for large-diameter, high-pitch propellers typical on heavy-lift UAVs and large aircraft. Suitable propellers range from 24-30 inches in diameter, depending on the specific airframe, target thrust, and battery voltage (2S-7S). Always consult thrust tables and ensure your ESC and power system can deliver the required current.

Can this motor be used for long-duration UAV missions?

Yes, its design emphasizes efficiency and thermal resilience, making it suitable for extended flight times. Operating at its max efficiency current (80-90A) with a well-matched propeller and high-capacity LiPo pack will provide the best endurance. Ensure the installation allows for passive or active cooling to maintain safe operating temperatures during prolonged use.

What is the physical mounting pattern for the Scorpion A-7445 motor?

While the exact bolt hole circle (BHC) is not specified in the provided data, motors of this size (74mm diameter) typically use robust mounting patterns like M5 or M6 bolts. You must verify the specific mounting hole spacing and size from the official Scorpion documentation or the motor's base plate before designing your frame or firewall.

Package Includes

  • 1 x Scorpion Tribunus A-7445-140kv Motor
  • 4 x Mounting Screws
  • 1 x Hunter MPE-10 Multi-Port Emitter

Additional Information

Weight 1.876 kg
Dimensions 7.5 × 7.4 cm