Poseidon is also working on a larger model, the Heron ... makes a large-scale sea glider that aims to replace ferries and short-haul aircraft. Zagaynov caught the startup bug the way many of ...

Regent’s Viceroy, which holds 12 passengers with a 65-foot wingspan, completed a successful sea test on Rhode Island ... up speed it "foils," meaning it gliders over the water's surface ...