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Displaying items by tag: Maxi Z86

17th December 2009

Cork Week, How Rocketships work

Jargon – How the Cork Week Rocketships Work

Sailing fast is all about converting the wind’s energy into boat speed and these big ocean racers generate more horsepower and speed for their size than any single-hull craft that has ever sailed the seven seas.

When the wind blows over 20 knots they leave pursuing powerboats wallowing in their wake. Photographers have to resort to helicopters.

The secret to the success of these high-tech speedsters is their weight-saving, super-strong, carbon fibre construction and their radical underwater design.

Gone are the keel and rudder combinations of conventional sailboats where the shape and weight of the keel counteracts the heeling effect of the wind and helps prevent the boat making leeway (slipping sideways).

In place of the keel is a slender strut with a nine-ton ballast bulb at its tip. Swung out (canted) sideways under the boat by a hydraulic ram, the bulb provides extra stability, standing the boat up straighter and making the sails more efficient.

The twin rudders, one ahead of the strut and one behind it, perform a double duty. They provide the foil shape and area to minimise leeway while also improving maneuverability.

Tacking calls for no more than the touch of a button to swing the keel into a new direction.

Disney and Plattner, the CEO of Germany’s SAP software empire, were fellow competitors in a previous class of lightweight 75-foot ocean racers, worked together to create the new class.

"To have a bunch of boats where we can go out and actually have boat races instead of designer races seems to me to be really good idea,‰ Disney said. „That's what I hope for with this project – that it will attract people who want to go racing on the same terms. Not that we all don't like to go a little bit faster than the next guy, but it's a lot more fun when it’s a boat race."

Published in Cork Week

About boot Düsseldorf: With almost 250,000 visitors, boot Düsseldorf is the world's largest boat and water sports fair and every year in January the “meeting place" for the entire industry. From 18 to 26 January 2020, around 2,000 exhibitors will be presenting their interesting new products, attractive further developments and maritime equipment. This means that the complete market will be on site in Düsseldorf and will be inviting visitors on nine days of the fair to an exciting journey through the entire world of water sports in 17 exhibition halls covering 220,000 square meters. With a focus on boats and yachts, engines and engine technology, equipment and accessories, services, canoes, kayaks, kitesurfing, rowing, diving, surfing, wakeboarding, windsurfing, SUP, fishing, maritime art, marinas, water sports facilities as well as beach resorts and charter, there is something for every water sports enthusiast.

At A Glance – Boot Dusseldorf 

Organiser
Messe Düsseldorf GmbH
Messeplatz
40474 Düsseldorf
Tel: +49 211 4560-01
Fax: +49 211 4560-668
Web: https://www.boot.com/

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