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UAM
Redefining Urban Mobility
Urban Air Mobility (UAM) is a core growth area of the low-altitude economy, aiming to leverage electric vertical takeoff and landing aircraft (eVTOLs) to establish a three-dimensional urban transportation network, enabling efficient point-to-point, door-to-door travel.
High security
The ducted‑fan architecture provides robust isolation and protection, safeguarding both the internal blades and external personnel or the environment. Moreover, ducted fans exhibit strong resistance to adverse weather conditions and excellent flow‑field stability, thereby enhancing flight safety. Coupled with multiple layers of redundant safety features, they help prevent catastrophic accidents resulting from actuator failure.
Duct isolation protection,Strong resistance to flow-field disturbances.,Propeller‑paddle failure redundancy
Low noise
The fan blades have a lower linear velocity, resulting in reduced acoustic energy from the source. The duct provides shielding against the direct propagation of sound waves in all directions, and the reflected waves can partially cancel each other out. Near the takeoff and landing zones, noise levels can be significantly lower than those of conventional helicopters or various rotor‑based eVTOLs and unmanned aerial vehicles. Additionally, sound‑absorbing materials and structural noise‑reduction features can be integrated into the duct.
Low noise levels at the takeoff and landing vicinity.,The inner wall of the duct has significant noise-reduction potential.
High efficiency
By adjusting the flow‑path cross‑section and reducing induced drag, propulsion efficiency is improved by 40% compared with conventional rotor systems; the ducted‑fan assembly and structural components are fabricated from carbon‑fiber composites to minimize weight; and an optimized layout minimizes wasted volume, thereby increasing the payload fraction.
Achieve a 40% improvement in efficiency.,Lightweight composite materials
Compact size
Under the same payload requirements, ducted-fan propulsion systems offer a significant size advantage due to their larger propeller disk loading. As a result, the overall eVTOL aircraft can be comparable in size to a passenger car, substantially reducing the space needed for vertical takeoff and landing. This enables widespread deployment at residential areas, office districts, and throughout urban centers, realizing the vision of door-to-door urban air mobility and dramatically improving travel efficiency.
High rotor disk loading,Compact overall dimensions,Low takeoff and landing requirements,Door-to-door travel
Leader in electric aerospace propulsion systems
Mastering internationally leading eVTOL electric ducted-fan jet propulsion technology.
Leader in electric aerospace propulsion systems
Mastering internationally leading eVTOL electric ducted-fan jet propulsion technology.
Weihang Technology
Weihang Technology
Weihang Technology
Weihang Technology
Weihang Technology
Application scenarios
Typical urban air mobility scenarios for UAM aircraft powered by ducted fans
Firefighting scenarios in urban high-rise buildings
Weihang Technology’s world‑first ducted‑fan, high‑altitude tethered main‑battle fire‑fighting drone system is an integrated product that seamlessly combines a high‑thrust ducted‑fan flight platform with a firefighting chassis. It delivers exceptional firefighting and rescue performance: while maintaining the compact dimensions of a standard fire truck—10 m × 2.55 m × 4 m—to ensure rapid deployment to the scene, it can swiftly ascend to altitudes of over 100 meters and sustain a continuous liquid flow rate exceeding 30 L/s for extended periods, providing robust fire‑suppression capabilities. This next‑generation main‑battle asset is fully capable of addressing the challenges of firefighting and rescue operations in urban high‑rise buildings.
Fire protection scenarios such as smart industrial parks, chemical plants, oil and refining facilities, and photovoltaic power stations.
Modern smart parks integrate drone-based fire‑fighting and inspection systems, enabling 24/7 automated patrols, automatic early warnings for potential hazards, and rapid response coordinated with fire‑fighting equipment.
Firefighting scenarios involving urban supertall buildings (over 200 meters), CBD core office districts, and high-rise residential complexes.
New‑generation smart fire‑fighting system: a locally deployed smart fire‑fighting system comprising a tethered ducted‑fan aerial platform and a locally installed distributed drone hangar.
Logistics and transportation in plateau and mountainous areas, natural disaster zones, and island regions.
In plateau, mountainous, or disaster‑stricken areas where roads are blocked, multirotor drones enable rapid aerial delivery of supplies, overcoming the constraints imposed by disrupted ground transportation.
