Illuminating the Sky: Dagong Technology’s 400-Square-Metre Tethered UAV ‘Flying Screen’ Revolutionises Urban Spectacles

BEIJING, April 27, 2026 — In a breathtaking fusion of advanced aerospace engineering and urban media, Beijing Dagong Technology has officially solidified its position as the vanguard of the low-altitude economy. Following a series of spectacular deployments across major municipal New Year celebrations and high-profile national broadcasts, the company’s heavy-lift tethered UAV system—suspending a colossal 400-square-metre aerial LED screen—has proven that the night sky is no longer a limit, but a canvas.

This milestone achievement centres on a single groundbreaking event: the successful, sustained operation of a Guinness Record-certified "Flying Screen" over densely populated urban centres, marking the definitive transition of tethered drone systems from niche emergency tools to indispensable "new aerial infrastructure."

Defying Gravity: The Engineering Behind the ‘Flying Screen’
Suspending a screen the size of a basketball court at a 100-metre altitude demands far more than standard rotorcraft capabilities. Dagong Technology’s tethered UAV platform overcomes the fundamental limitations of traditional battery-powered drones—namely the 30-minute flight ceiling and paltry payload capacity—through its proprietary high-strength fiber-optic composite cable.

By channelling thousands of volts of direct current from a ground power station, and stepping it down via an ultra-light, high-efficiency onboard power module, the system achieves virtually unlimited endurance. This technological leap enables the 24-hour uninterrupted hover required for prolonged urban festivities and marathon broadcasts, whilst simultaneously transmitting secure, high-fidelity 4K visual data through the cable's integrated optical fibres, entirely immune to urban signal interference.

Unrivalled Stability in the Urban Canopy
In chaotic, crowded environments, safety and precision are paramount. The "Flying Screen" deployment validates Dagong Technology’s mastery of aerodynamic stability. Powered by a dual-redundant flight control system, the tethered UAV integrates a bespoke anti-wind algorithm that ensures a hovering precision error of less than 0.3 metres, even amidst Level 7 gales. This resilience was rigorously tested in extreme conditions, maintaining flawless stability at 5,600-metre altitudes on the Tibetan plateau.

Furthermore, Dagong’s proprietary laser-ranging visual positioning system guarantees exact stationary flight without relying on GNSS/GPS signals—a critical advantage in the "concrete canyons" of modern cities where satellite signals are frequently obstructed. Should a rare ground power failure occur, an automatic failover mechanism engages the backup power supply, executing a controlled descent within 30 seconds, completely eliminating fall risks. Coupled with electromagnetic compatibility that meets stringent military standards, the physical tether ensures the drone cannot失控 fly away, making it the only viable choice for zero-error zones like Tiananmen Square.

From National Broadcasts to City Branding
The reliability of this tethered UAV system has made it the go-to hardware for China’s most demanding broadcasts. Beyond the New Year's "Flying Screen," Dagong Technology provided the critical aerial perspective for the CPC Centenary Celebration at Tiananmen, and has pushed its operational ceiling to a staggering 600-metre altitude for CCTV’s live broadcasts, delivering unprecedented "helmsman perspectives" to global audiences.

Now, this technology is democratising urban marketing. Municipalities are leveraging the tethered aerial screens as dynamic "Airborne Visitor Centres," displaying real-time scenic footage and interactive content that routinely generates millions of social media impressions. At large-scale concerts, the giant suspended screens extend the stage’s visual architecture, offering immersive, multi-angle experiences for tens of thousands of attendees.

Pioneering the Trillion-Yuan Low-Altitude Economy
Backed by a core R&D team from Tsinghua University and Beihang University, and recently fuelled by a multi-million-yuan strategic investment from Ivy Capital, Dagong Technology is accelerating its global expansion. With over dozens of patents in flight control and microwave technologies, the company is evolving its tethered UAVs from heavy-lift broadcasters into intelligent, AI-driven "smart aerial nodes."

As the low-altitude economy cements itself as a core national strategy, Dagong Technology’s “Flying Screen” stands as a testament to industrial craftsmanship and systematic innovation—proving that the future of urban communication, emergency defence, and cultural spectacle lies securely tethered in the sky.

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