The sloop Antares was built in 1948 by Andrew Riddell in Middle Harbour. Andrew also built a sailing dinghy to an Uffa Fox design which was used as a tender for Antares and is now in the Heritage Fleet Collection item 84/97. Antares was designed by Alan Mackerras in May 1948 who owned her until his death in 1973. Alan was the father of the very talented family of seven children, including the famous conductor Sir Charles Mackerras, the political commentator Malcolm, the educationalist Alastair and the China expert Colin. Alan was a long time member of Middle Harbour Yacht Club and its handicapper for some time.Alan designed her with very appealing lines. Some have compared her to a Colleen class sloop with the addition of a raked transom not to be confused with the Irish design of the same name There are a few surviving Colleen Class sloops on Sydney Harbour, and one sister ship to Antares called Amber K.. She is believed to have a metacentric hull. This gives her a very balanced helm in all wind conditions.Alan did not believe in having any penetrations in the hull, so to this day, she has no engine, having been sailed on an off her mooring for 65 years. Antares hull and rig has not been modified, apart from the use of modern sails, sheets and fittings for competitive racing. She still has the original hollow Oregon mast and boom. In the last 10 years her traditional caulking seams have been raked out and replaced with flexible epoxy, with some of the seams splined below the waterline. In addition a few of her ribs have been strengthened. The result is a very tight hull.When Alan Mackerras died she was sold to Dr John Wilson, who subsequently sold to Bill Ratcliff . However it appears that Dr. John Wilson kept the tender and donated it to the Sydney Heritage Fleet in 1984. Bill raced her successfully at the Cruising Yacht Club, winning Harbour A Division in 1977. He sold it to co-owners David Mathlin and Michael Friendand. In 1988 one of the current owners, Rob Keessen took a half share with David Mathlin. Jan Ashdown owned a half share from 2004 to 2008, who sold it to the other current owner, Dennis Wood.Antares continues to be raced regularly with Sydney Amateur Sailing Club. She won the Div 2 Short Series in 2013.