Adelaide yachtsman Geoff Boettcher has unveiled his latest Secret Mens Business – a hi-tech ocean racing yacht designed to win the 60th Anniversary Rolex Sydney Hobart Yacht Race – and revealed a hidden secret.

The 14.2m carbon fibre hull was lowered on to the keel and bulb at Blue Sky Marine, North Haven, from where Boettcher and his crew hope to have their first sail off Adelaide today.

Designed by American naval architects Reichel/Pugh, the pioneers of the canting keel system, the new Secret Mens Business has a conventional deep keel and bulb, but the designers have added a full length trim tab to the trailing keel of the keel.

“The trim tab will give greater lift when sailing to windward, but will also give us better steering control downwind,” explained Boettcher whose previous Secret Mens Business, with a large Australian flag painted on the blue topsides, made it a much photographed yacht.

Boettcher has been a consistent, but luckless competitor in past Rolex Sydney Hobart Races but is confident the new boat will make amends.

The boat certainly has a good pedigree. Designers Reichel/Pugh designed the state-of-the-art super maxi Alfa Romeo and canting keel speedsters Wild Oats and Pyewacket while builder Mal Hart of Mornington, Victoria, constructed the super maxi Skandia.

The latest technology extends above deck level, with a carbon fibre mast for the sweptback spreader rig and D4 carbon fibre working sails from Doyle Fraser Sailmakers.

Secret Mens Business is due to make its racing debut next weekend in the prestigious Premier’s Cup, a five race regatta conducted by the Cruising Yacht Club of South Australia. The following weekend she will sail in the Haystack Island Race, her qualifying race for the Rolex Sydney Hobart Yacht Race.

Three South Australian yachts are in the 120-boat fleet for the 60th Rolex Sydney Hobart Race, the others being Pale Ale Rager (Gary Shanks) and Reprieve (David Barnfield). Former South Australian Michael Tromp, now based in Queensland, is also back with Epsilon, with the yacht still on the register of the Royal South Australian Yacht Squadron.