Oakland University’s Loon Copter can fly, land on the water to see what’s under the surface, and then dive down to check out what
it sees.

The Loon flies in the same fashion as any other quadcopter, and initially floats when it comes to rest on the water. It can then simply sit in one spot, or it can use its props to push itself along the surface. The real fun starts when it pumps water into its buoyancy chamber, though, causing it to sink.

Instead of submerging straight down, the Loon actually tips to one side as it sinks. It then re-engages its props, allowing them to pull it top-first through the water. While it’s underwater, it can turn to either side, dive or ascend using its water ballast system, and record video or gather other data as it does so.

Once it’s time to get airborne again, it just pumps out its buoyancy chamber, causing it to float back to the surface and swing
into position.

Very cool. And very useful. Fly to the scene and dive. If you like the idea, Rutgers University is working on something similar for the Navy called the Naviator. Also look for the story on the CRACUN.

From www.gizmag.com

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