The name for boats that no longer touch the water.
The category
For most of boating history, a hull's speed was capped by how much water it had to shove out of the way. Hydrofoils change that arithmetic: thin underwater wings lift the hull clear of the surface once a boat crosses a threshold speed, and the drag that was fighting the engine drops by as much as 80 percent. The industry's own term for what happens next is blunt about it — a boat on foils, once it clears that speed, is described as flying.
In the last five years, builders in Sweden, the UAE, and beyond have applied that idea to electric day boats and yacht tenders, quiet enough to hold a conversation at 25 knots. A stranger cousin is arriving alongside them: the electric seaglider, a wing-in-ground-effect craft that skims a few meters above open water on aerodynamic lift rather than a foil, taxiing out of harbor on hydrofoils before it ever leaves the surface. It is regulated as a marine vessel, not an aircraft, and it is neither a boat nor a plane in the way either word used to mean.
A short timeline
Military origins
Early hydrofoil patents and experimental navy craft prove the concept at speed, culminating in Cold War–era patrol hydrofoils built for speeds no displacement hull could match.
Passenger ferries
Foiling and ground-effect ferries move commuters across straits and harbors on fuel-thirsty gas turbines — capable, but never cheap enough to spread.
Electric hydrofoiling arrives
Battery power and computer-stabilized foils turn a military trick into a consumer one: quiet, wake-free day boats and tenders that foil at day-boat speeds.
The seaglider
All-electric wing-in-ground-effect passenger craft move from prototype to certification testing, taxiing on hydrofoils and cruising a wingspan above the sea.
The domain
flying.yachts
A plain-language, two-word name for a category that keeps needing one. It reads correctly on a hull, a hangar door, or a pitch deck, and it says exactly what the craft does — using the same word the engineers already use for it.
Availability
Held as a single listing under Johns.Domains, alongside a short list of other category-naming domains. Priced for a builder, brand, or investor who wants the name before a competitor does.
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