Danish students created a drone capable of flying and swimming

Four Danish students craft a drone that flies and swims.

: In Esbjerg, Denmark, four engineering students from Aalborg University created a remarkable prototype drone that can transition seamlessly between flying and swimming. This innovative design is equipped with variable-pitch propellers to adjust in real-time, providing the necessary thrust for both air and water operation. Their comprehensive approach combines mechanical and software solutions, including stabilization algorithms and corrosion-resistant materials, to manage the significant environmental challenges of dual-environment navigation. Despite the capabilities of similar systems like the Nezha SeaDart, this drone remains distinct due to its independent engineering and local production.

Four engineering students from Aalborg University in Esbjerg, Denmark, have developed a groundbreaking drone that can both fly and swim. This project, spearheaded by Andrei Copaci, Pawel Kowalczyk, Krzysztof Sierocki, and Mikolaj Dzwigalo as part of their bachelor’s thesis, showcases their ability to blend aerial and underwater robotics seamlessly. Over the course of two semesters, they designed a waterproof prototype that employs a unique system of variable-pitch propellers, enabling the drone to generate appropriate thrust for flying through air and navigating underwater.

The engineering challenges were significant, especially given the necessity for underwater propulsion to counteract greater drag forces and different stability dynamics compared to aerial flight. By integrating stabilization algorithms and finely tuning the propeller system, these students managed to maintain control in both domains. The design also emphasizes a robust waterproof housing using sealing systems and corrosion-resistant materials, crucial for operation under varying water pressures.

Petar Durdevic and Mads Valentin Bram, associate professors supervising the project, highlighted the advanced manufacturing techniques employed. The team used a combination of 3D printing, CNC machining, and advanced materials to ensure the drone's durability and functionality, exemplifying modern prototyping standards. Video demonstrations depict the drone's capabilities, as it effortlessly transitions from hovering above water to submersion and back to flight, suggesting versatile applications in industries requiring observational or exploratory tasks in aquatic environments.

Despite being in the testing phase, the prototype shows promise with potential uses in maritime inspections, search-and-rescue missions, military reconnaissance, and environmental monitoring. The drone is engineered to carry various payloads like cameras and sensors, broadening its applicability for complex tasks that demand both aerial and submersible units. This versatility means widespread applications, leveraging the advantages of a single adaptable platform over separate aerial and aquatic devices.

Comparatively, the AAU design rivals international prototypes such as the Nezha SeaDart from China. Still, the independence in both engineering and manufacturing distinguishes it. The team's focus on improving endurance, refining control systems, and better payload integration will likely result in advancements elevating both commercial and practical usability.

Sources: Techspot, Aalborg University

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