“Alinghi’s keel bulb unveiled. The strut deflection caused by a 20 tonne bulb is an engineering challenge but the Public Interpretations are clear, as to what can be done to reduce strut deflection.” Ivo Rovira /Alinghi This site and its contents are © Copyright TetraMedia Pty.Ltd. All Rights Reserved. Photographs are copyright by law, if you wish to use an image from Sail-world.com, Powerboat-world.com or Marinebusinessnews.com, Contact us. Click Here to close this window