Overview
- The research team published experimental results in Science on July 9 showing a flapping‑wing aerial‑aquatic vehicle (FAAV) that swam in tanks and in Lake Geneva then broke the surface and flew using only wing flaps and a movable tail.
- The prototype weighs under 300 grams, has roughly an 80 cm wingspan, and operated in tests with wingbeat frequencies near 5 Hz to swim at about 1 m/s and, after pitching to roughly 70 degrees, fly at about 6 m/s.
- Key design choices that make the transition possible include very flexible membrane wings that bend underwater, a waterproof electric motor, hydrophobic nanoparticle coatings on the wing membranes, and an adjustable tail for launch angle control.
- The FAAV is a proof‑of‑concept rather than an operational tool: the team is now adding wing rotation and steering, and plans trials in salt water, choppy waves, turbulence and wind to address durability and control before ocean deployment.
- Researchers envision low‑cost uses in coastal and marine monitoring—launch from shore or boats to sample or observe—and note the platform’s open CAD files and modest material cost could speed wider testing and adaptation if robustness goals are met.