"About 250 planks of wood, 50 per cent of the ship is in different warehouses in the area and the masts are on display at Chatham Historic Dockyard.
"The timbers that remain on the ship were growing during the battle of Agincourt so it's much harder to destroy those beams."
He said the ship needed to be preserved as a "treasure for the world", adding it had inspired Ellen MacArthur.
He said: "This ship was a legend in its lifetime. It was the Ferrari of the seas and set a record when it took just 72 days to get from Sydney in Australia to London with a full cargo.
"She has been to every major port in the world.
"It cost £300,000 to build the dry dock she sits in now, which was a considerable cost just after two world wars. She helped to make the wealth of London and she has a very special place as an icon of this world heritage site at Greenwich. This is part of our national identity."