Candela Seven

World-first all-electric foiling sportsboat explained | Candela Seven | Motor Boat & Yachting
Motor Boat & Yachting

People have building hyrdofoil boats for over 100 years, but they have never gotten to be popular or numerous. The basic concept seems sound, but there seem to be difficulties in implementing a successful design. The Candela Seven uses a computer to control the hyrdofoils to deliver a smooth, easily controlled ride. Seems like most hydrofoils I have heard about also require computer control.  The Candela Seven is a slick bit of engineering, but it is expensive ($250,000). 

The numbers quoted in the video go a long way toward summarizing the constraints on the design.

Via Detroit Steve.