The legend of the HongYan HY6 (CQ261) is not written in conflict, but in the enduring ink of international cooperation. Its story is one of the most profound industrial odysseys of the 20th century.
In 1964, against a backdrop of a divided world, a historic bridge was built between East and West. Through a landmark $14.6 million technology transfer agreement, the legendary French heavy-truck pioneer Berliet joined forces with Chinese visionaries. This was more than a commercial deal; it was the spark that ignited a modern industrial revolution deep in the misty valleys of Yibin.
There, a former high-voltage appliance factory was transformed into a cradle of automotive excellence. It was a crucible where French engineering precision met Chinese resilience. Engineers from both nations overcame immense challenges—painstakingly auditing thousands of technical blueprints and bridging vast cultural divides—to evolve the Berliet GBU15 into the CQ261.
For decades, this "Iron Spine" shouldered the weight of a developing nation. From towing heavy artillery through the rugged, rain-slicked mountains of the southern frontier to hauling the raw materials that built modern cities, the CQ261 became a cultural icon of reliability. It proved that a "correct tool," crafted with uncompromising standards, transcends its military origins to become a universal symbol of heavy-duty capability.
Today, the HY6 stands as a 1/10 scale tribute to that golden age of mechanical purity. It is not just a model; it is a revival of that spirit of international industrialism—a masterpiece of history, now ready for your command.
The HY6 is not merely a model; it is a heavy-duty industrial machine scaled down for the trail. Its foundation is built upon 6mm thick CNC-machined aluminum chassis rails, providing a level of structural rigidity rarely seen in the RC world. This uncompromising use of metal extends to the rear, where a solid, seamless 6mm aluminum cargo bed floor ensures that the vehicle can handle varying heavy loads without deformation.
To manage this weight while maintaining stability, the engineering team designed a unique recessed battery compartment. By sinking the power source deep into the chassis, the center of gravity is drastically lowered, allowing this 800mm-long giant to negotiate steep side-hills with the stability of a much smaller crawler. The suspension system honors its heritage with a leaf-spring architecture that replicates the authentic load-bearing physics of the original truck, though it remains fully compatible with oil-filled shock upgrades for those seeking extreme articulation.
Under the hood, the HY6 introduces a groundbreaking drivetrain designed for longevity and realism. It features an industry-first Dual-Drive Transmission system for the middle and rear axles. By splitting the power distribution, this design not only mimics the complex mechanics of the full-scale truck but also reduces stress on individual components, extending the drivetrain's lifespan by over 30% compared to traditional single-shaft setups.
Control is absolute. The front axle is equipped with a remote-locking differential, allowing the driver to switch instantly between open-diff maneuverability for tight turns and locked-diff traction for escaping mud or rocks. This is paired with a dual-speed gearbox operated by a dedicated servo, featuring a "visible shifting" structure that allows for easy mechanical inspection.
The HongYan HY6 is not just a vehicle; it is a mechanical symbiosis of past and future, a tool of precision designed to conquer the most demanding terrain while honoring a global legacy of engineering. The expedition begins now.
The HY6 truck is not simply a scale model — it is a purpose built heavy duty truck engineered for demanding terrain. At its core are 6 mm thick CNC machined aluminium chassis rails, delivering exceptional torsional rigidity rarely found in RC vehicles. This structural integrity continues to the rear with a one piece 6 mm aluminium cargo bed floor, designed to carry substantial loads without flex or distortion.
The suspension system uses a traditional leaf spring layout, faithfully replicating the load bearing characteristics of the full size vehicle. For users seeking increased articulation, the platform also supports oil filled shock upgrades without modification.
Climbing Performance
The HY6 delivers controlled, progressive throttle response with ample torque, enabling confident operation on steep gradients and uneven terrain including rock, grass, and sand.
Integrated Scale Lighting System
A fully linked lighting package provides ten selectable modes, recreating authentic real world vehicle lighting while improving visibility during low light operation.
Modular Quick Release Cargo Bed
The cargo bed features tool free removable panels, allowing rapid reconfiguration for different load types and operational scenarios.
Technical Specifications
Scale: 1/10
Body: Injection moulded ABS
Chassis Rails: 6 mm CNC machined high strength aluminium
Suspension: Steel leaf spring system
Linkages: 8 mm stainless steel pull rods
Drivetrain: 6WD (six wheel drive) with front differential lock
Motor: 4282 FOC brushless motor
ESC: 140A FOC brushless electronic speed controller
Steering Servo: 45 kg high torque waterproof metal gear servo
Radio System: 2.4 GHz 6 channel transmitter
Control Range: Approximately 350 m
Operating Voltage: 6V - 11.1V
Top speed: 21–42 km/h (terrain and setup dependent)
Length: 800 mm
Width: 321 mm
Height: 331 mm
Wheelbase: 493 mm
Tyre size: 126 mm × 40 mm
Battery Compartment maximum size: 165 × 50 × 32 mm
Battery: 3S 11.1v or 4S 14.8v battery (not included)
What's in the box
Rlaarlo HY6 Brushless Edition Truck with 2.4ghz Radio System
User Manual, Decals and basic hex tools
Needed to complete
Battery
Charger
4 x AA batteries for the transmitter
