Summary:Researchers have developed a flapping-wing aerial-aquatic vehicle (FAAV) that combines bird-inspired flight and underwater mobility in a single lightweight robot. The technology could enable future ocean monitoring missions by bridging the gap between aerial surveying and underwater data collection.

 

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A new flapping-wing aerial-aquatic vehicle (FAAV) is demonstrating how bio-inspired robotics could transform ocean exploration, environmental monitoring, and autonomous data collection.

Developed by engineers from MIT and the Swiss Federal Technology Institute of Lausanne (EPFL), the lightweight robot is designed to operate across two challenging environments: air and water. Weighing less than half a pound and featuring a fully hydrophobic structure, the FAAV draws inspiration from diving seabirds such as puffins, gulls, and petrels that can both fly and swim efficiently.

 

 

Unlike conventional drones or underwater robots, the FAAV uses flexible membrane wings that adapt to different operating conditions. Instead of folding its wings underwater, the robot changes its wing-flapping frequency to maintain efficient propulsion in both air and water. This simplified design reduces mechanical complexity while improving adaptability.

The system integrates an electric motor, battery, crankshaft-driven flapping mechanism, motorized tail, and interchangeable wing membranes. During laboratory testing and field trials on Lake Geneva, the robot successfully transitioned from water back into flight when exiting the surface at an angle greater than 70 degrees—an important milestone for multi-environment robotic platforms.

 

Although the current prototype cannot yet dive directly from the air into the water, the research establishes a foundation for future aerial-underwater robots capable of collecting data across vast marine environments.

As demand grows for autonomous ocean monitoring, marine robotics, environmental sensing, and bio-inspired drone technology, the FAAV highlights a promising approach to exploring remote and previously inaccessible regions of the world's oceans.