China's hydrogen-powered drone breaks the one-hour endurance barrier.

On [date], the kilogram-level hydrogen-powered drone jointly developed by China Aviation Industry Group and Tsinghua University completed a [number]-hour continuous cross-day-and-night flight in Chengdu Qingyang Aviation New City. This achievement not only set a new endurance record for similar domestic aircraft but also provided a "Chinese solution" for the global low-altitude economy and green aviation development with internationally leading technical indicators. Behind this breakthrough is China's systematic innovation in fields such as hydrogen fuel cells, low-temperature startup technology, and communication and photoelectric payloads, marking the country's leap from following to leading in the new energy aviation track.

I. Technological Breakthroughs: Three Core Innovations from Laboratory to Practical Application

The Disruptive Revolution of Hydrogen Fuel Cells

The hydrogen fuel cell system equipped on this drone adopts an integrated design of flight, engine, and control, limiting the fluctuation of fuel cell output power to % (the international standard is %), ensuring stable flight even in extreme weather conditions such as heavy storms. The core breakthrough lies in replacing expensive platinum with silicon-based catalysts, reducing the cost of the fuel cell from yuan per kilowatt to yuan, laying the foundation for large-scale applications. Additionally, the metal plate air-cooled fuel cell stack developed by the team achieves an energy density of .% (mass hydrogen storage density), which is times that of traditional lithium batteries. A hydrogen storage system the size of a briefcase can support hours of continuous flight.

Reliability verification under extreme environments.

At an altitude of 5,500 meters on the Qinghai-Tibet Plateau, the drone withstood the harsh test of an ultra-low temperature environment of -40°C. Through nano-aerogel insulation technology ("Ice Armor" hydrogen storage), the liquid hydrogen evaporation rate was reduced to one-fifth of similar products in Europe and America, successfully solving the global challenge of low-temperature startup for fuel cells. Test data shows that the system can still achieve a one-time ignition success and operate continuously for 30 hours in the -20°C plateau environment, verifying its applicability in complex scenarios such as polar regions and high altitudes. At an altitude of 5,500 meters on the Qinghai-Tibet Plateau, the drone withstood the harsh test of an ultra-low temperature environment of -40°C. Through nano-aerogel insulation technology ("Ice Armor" hydrogen storage), the liquid hydrogen evaporation rate was reduced to one-fifth of similar products in Europe and America, successfully solving the global challenge of low-temperature startup for fuel cells. Test data shows that the system can still achieve a one-time ignition success and operate continuously for 30 hours in the -20°C plateau environment, verifying its applicability in complex scenarios such as polar regions and high altitudes.

Land-Air Coordination and Intelligent Sensing System

The innovation employs an autonomous release technology from unmanned ground vehicles, achieving a coordinated "unmanned ground vehicle + unmanned aerial vehicle" land-air operation. It successfully conducted takeoff and landing demonstrations under non-standard runway conditions, providing a flexible solution for field emergency deployment. Equipped with a 100-megapixel multispectral camera and a thermal imager, it can clearly identify targets kilometers away at night. In conjunction with the onboard module, it transmits real-time inspection data to a command center kilometers away with centimeter-level precision.

II. Application Scenarios: Multi-Dimensional Empowerment from Emergency Disaster Relief to Smart Agriculture

Emergency Rescue: Reconstructing the Golden Rescue Timeline

The drone's payload capacity of several kilograms enables the delivery of medical supplies, lifesaving equipment, and more. During the Henan floods in 2021, similar models successfully rescued 89 trapped individuals. With an endurance of several hours, it can cover the entire South China Sea. Equipped with high-precision electro-optical payloads, it is capable of tracking aircraft carrier movements. Its cost is only 1/20 that of the U.S. military's MQ-9 drone, offering a cost-effective solution for maritime emergency response.

Smart Agriculture: Solving the Labor Shortage Dilemma

At the Yunnan coffee plantation base, hydrogen-powered drones cover an area of up to acres per single mission, with pesticide utilization efficiency increasing by % and costs decreasing by %. This effectively addresses the shortage of agricultural labor in mountainous regions. Their long-endurance capability supports cross-regional farmland monitoring, enabling precise pest and disease identification through algorithms and driving the transformation of agricultural production toward intelligence and intensification.

Energy and Infrastructure: Pioneering a New Paradigm for Low-Altitude Inspection

In the inspection of offshore oil and gas pipelines conducted in collaboration with CNOOC, a single flight can cover kilometers of sea area, improving efficiency by several times compared to traditional manual inspections. In the field of power line inspection, the infrared thermal imaging camera mounted on drones can monitor temperature anomalies of transmission lines in real time. Combined with the transmitted data, this enables fault location accuracy to improve from the hundred-meter level to the centimeter level.

Urban Governance: Building a Low-Altitude Digital Twin Network

Cities such as Chengdu and Shenzhen have launched the construction of "hydrogen-powered drone logistics corridors." Pilot data from SF Express shows that hydrogen-powered models can achieve a daily average flight duration of hours, which is . times that of lithium battery-powered drones. In the future, it is expected to achieve a direct logistics route from Hangzhou to Wuhan in hours. Additionally, the lidar and three-dimensional wind field monitoring systems equipped on the drones can construct urban low-altitude digital models, providing real-time data support for smart city management.

Milestone in Green Aviation

The zero-carbon emission characteristic of hydrogen fuel cells makes them an ideal substitute for traditional aviation fuel. Taking this drone as an example, its carbon reduction per hour of flight is equivalent to planting mature trees, providing a feasible path for the decarbonization of the global aviation industry. With the improvement of hydrogen refueling station networks in China, drones can achieve an ultra-fast cycle of "flight-refueling-reflight" within hours, while the United States currently only has hydrogen refueling stations, showing a significant gap.

A New Track for Global Competition

This breakthrough directly rewrites the endurance record of 168 hours held by the U.S. "Global Observer" drone, marking China's comprehensive leadership in the field of long-endurance unmanned aerial vehicles. The International Energy Agency (IEA) report points out that China's hydrogen-powered drone technology has reached a "commercialization tipping point," with the global market size expected to exceed $10 billion annually, and China is projected to account for over 50% of the market share.