Dualsky CRS4000.10 Contra-Rotating Propulsion System – High-Power Precision Drive

The Dualsky CRS4000.10 Contra-Rotating Propulsion System is a high-power electric propulsion solution engineered for applications requiring exceptional thrust capability, torque neutrality, and mechanical balance. Built around Dualsky’s advanced contra-rotating architecture, this system drives dual counter-rotating propellers from a single integrated brushless motor assembly, significantly reducing torque effects while maximising propulsion efficiency.

Designed for large and high-performance RC aircraft, the CRS4000.10 delivers stable, predictable power output across demanding flight profiles. The contra-rotating design improves airflow symmetry and thrust utilisation, making it particularly suitable for precision aerobatic platforms, large electric conversions, and advanced propulsion setups.

Beyond RC aviation, the CRS4000.10 is also well suited to engineering research, propulsion testing, UAV development, academic projects, and laboratory environments where balanced thrust systems, torque control, and efficiency optimisation are critical. Its system-level construction makes it ideal for experimental aerodynamics, powertrain evaluation, and high-load electric propulsion research.

Supplied as a genuine Dualsky product, the CRS4000.10 is manufactured to professional quality standards and supported with technical guidance, after-sales support, and scalable supply options, making it suitable for specialists, research teams, institutions, and bulk procurement.

Key Features & Advantages

Contra-rotating propulsion architecture for torque-neutral operation

High-power brushless motor system

Optimised for large and demanding propulsion applications

Improved thrust efficiency and airflow stability

Smooth, controlled power delivery

Suitable for RC, UAV, research, and engineering use

Manufacturer-backed quality and long-term reliability

Minimum Order & Supply Terms

Standard MOQ: 7 units

Accepted minimum order: 4 units

Orders below 4 units may be considered subject to stock availability.

This structured quantity policy supports consistent supply, quality control, and reliable after-sales support while offering flexibility for development and specialised applications.

Support, Warranty & Long-Term Service

This product is supplied as a genuine Dualsky contra-rotating propulsion system and is covered by the manufacturer’s warranty. We provide pre-sale and post-sale technical support, including system selection guidance, integration considerations, and application advice.

We support advanced RC pilots, engineering teams, universities, research laboratories, and professional users worldwide. Replacement components and compatible accessories are available to support long-term operation and maintenance.