Length: 241 cmWidth: 95 cmTail Width: 66 cmWeight: 8.10 kgVolume: 147 litersThickness: 10.7 cmFin: Drake Race 58 Ready to Race (Deep Tuttle)Sail range: 7.8m² - 12.0m²

The UltraSonic 147 Carbon by Starboard offers a truly great mix of easy freeride handling and racing performance. In really light-wind planing conditions, the board is easy to ride and starts planing very early, without any extra effort, and rapidly accelerates to a more than reasonable top-end speed.

However, the Drake Race 58 cm long fin is better suited for sail sizes around 9.2m² rather than 8.5m². For smaller sail sizes, smaller fins are recommended.

Compared to full-on racing slalom boards, the footstraps are easier to reach (especially the back footstraps) and there is less tail width, which allows for more really relaxed light-wind windsurfing... with a lot of potential for speed. When the wind picks up and the sail is full, the UltraSonic has a behavior that reminded us of a Formula board, favoring the upwind reach, with a lot of speed. A smaller fin for those 8.5m² sails and that sensation disappeared quickly.

The UltraSonic isn't just a blown up slalom board. It is an actual model inside a board group which suits the demands of the "recreational, early-planing windsurfers" very well.