Diamond Jubilee: London boats plan for Jubilee pageant
He said: "She'll soon be out of the water to have her bottom cleaned when we undertake anti-fouling in preparation for the big day in June.
"It's been a labour of love to restore her. Taking part in the pageant will be a once-in-a-lifetime experience for me and the four voluntary crew on board."
Mr Butt is confident The Queen herself would have sailed on his boat many times, including during her visit to Gambia in 1961 when he claims she used Jolly Brit on a crocodile hunting expedition.
More familiar to Londoners is the replica of Sir Francis Drake's warship The Golden Hinde.
Although the ship has not sailed from its dry dock in south-east London since 2003, preparations are under way for her to be part of the Jubilee flotilla.
She is a full-sized reconstruction of the vessel which Drake used when he became the first Englishman to circumnavigate the globe in 1580.
She has sailed once around the world and a total of 140,000 miles, many more than the original, since being launched in Devon in 1973.
Jean-Paul Lacroix, skipper of Adrenalin, a C&C29 out of Britannia Yacht Club, was trying to beat a Laser 28 to the windward mark when Morris - who has a big

