The 2021 America's Cup is being held in New Zealand. The "boats" this year are a new class called AC75: monohulled, with soft rather than rigid sails, and of course hydrofoils. One distinctive feature is that when the wind is strong enough they can all lift one of the two paired foils into the air to reduce drag.
Team New Zealand says their machine can hit 50 knots (56 mph or 91 kph).
Truly remarkable devices, but a long way from "sailing" as it was once done. This is about the future, not the past.