In addition to helping with speed, the hydrofoils work to squeeze the most range out of the battery, up to 43 nautical miles (80 km) when cruising at 25 knots (46 km/h). Edorado offers three battery options: a 42 kWh pack, 49 kWh pack and dual 28-kWh packs.
Edorado isn't the first company to think of the idea of combining electric power and hydrofoil technology. In the past, we've looked at the Quadrofoil, a distinctive electric personal watercraft (PWC) with a range of up to 54 nautical miles (100 km) and speeds up to 21 knots (39 km/h). By comparison, the 7S is much more a traditional boat and has nearly double the speed, less range and a lot more price.
Beyond the electric propulsion and hydrofoils, the 7S is a sleek, stylish silver bullet open to the sky above. The captain and passengers sit on sport seats, behind a small windscreen. The interior includes a 15-in sunlight-readable touchscreen navigation control center, an eight-speaker audio system and a cooled picnic set. There's also a set of retractable swimming steps in back.
All the performance specs are estimates from Edorado, and the company is showing a bunch of renderings, but no actual photos or videos of a boat or prototype. It says that it has been developing the 7S for the past two years and is now preparing for production. It lists the 7S base price at US$150,000/€135,000 euro and is taking reservations for the Launch Edition