The date of the opening is also significant, as it coincides with the anniversary of the laying of Titanic's keel, on 31 March 1909.

BBC: Titanic centenary launched with R J Welch exhibition

In 2007, along a familiar stretch of the British Virgin Islands from Anguilla to Anegada, Discovery's keel whacked a reef in the middle of the night.

FORBES: Life

The veteran coach is well known for maintaining an even keel but in Tuesday's press conference he lost his cool when asked about Antonio Cassano's continued absence from the squad.

BBC: Lippi chasing victory in Dublin

America's Cup boats traditionally have been monohulled with a keel a big underwater fin that counterbalances against the wind.

WSJ: America's Cup Team Feared Capsizing

The crew's quarters were little more than hammocks slung alongside the keel catwalk, where your sleep was soured by the stench of oil and Aruba fuel.

NPR: Excerpt: 'Skybreaker'

Most America's cup boats throughout history, including the 2010 versions, were traditional monohulled boats that had a keel: a giant, underwater fin that counterbalances the boat against the wind.

WSJ: Before America's Cup Capsize, Concerns About Safety