THE 650PRO

The 650PRO: A breakthrough in Mini 6.50 foiling through European scientific collaboration

The 650PRO was the first Mini 6.50 to achieve stable foiling, marking a major step forward in offshore sailing innovation.

Developed as part of a European research program at the request of the Alfred Wegener Institute, a world-renowned center for polar and marine research, the project pushed the boundaries of applied science in yacht design.

We employed our full suite of advanced design tools ranging from structural and hydrodynamic modeling to CFD and foiling simulations to pioneer a new foiling architecture for the Mini 6.50 class.

The final configuration included semi-submerged, retractable V-foils on each side, and a long gantry-mounted aft foil.

This unique arrangement was made possible through extensive development and has since influenced our design work including applications on Ineos Britannia’s America’s Cup yachts.

The 650PRO design was nominated for the foiling awards, a recognition for its advancements in foiling technology.

Image depicting the numerical optimization and resulting structural layout, a method we now employ on the design of America’s Cup boats.

Image during testing showing equilibrium and the particular hull shape which is now accepted in the class.

‘Today the 650PRO remains true to its original vision: an exceptionally advanced, research-driven, one-off racing machine at the leading edge of science and sailing which has been used as a testing ground for new technologies for the Alfred Wegener Institut, the builder and us.’

EARLY TAKE OFF

The main foil exits from under the hull and extends to the rule maximum beam to maximize efficiency so you can benefit from foiling in more conditions.

SIMPLE

With is surface piercing main foil and single elevator, the TT 650 PRO is a simple foiling platform that require no electrical control system.

STABLE FOILING PLATFORM

The elevator is mounted on a gantry to increase the power of the elevator. The elevator has been generously sized to provide greater pitch stability, the faster you go, the less elevator angle is needed.

RETRACTABLE

The main foil can be fully retracted when the sea and wind conditions are not favorable for foiling. The foil can be stored up on deck and to windward for better weight placement.

SCOW HULL SHAPE

The hull has been specifically designed for foiling, including an area aligned with the foil whose role is to smooth out some of the wave motion for a more constant foiling height.

RIG ARRANGEMENT

A rotating regular mast tube and mainsail is fitted, with an aero fairing at the intersection of the sail and the tube for increase aero performance, and a powerful reverse vang for dynamic sail trimming.