Meet the FT Sea Otter: a DIY water plane made from a water-resistant foam board that can move over water and fly in the air. The kit includes almost every component you need to build your own plane. You can optionally get a Lumenier 2250mAh 3s 35c Lipo Battery for it. The below video shows how the FT Sea Otter works:
More gadgets like this: here
DIY Foam Board Seaplane - FT Sea Otter | Flite Test
The above video shows this seaplane in action.
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