Lovely to see this boat on Greenland Dock today

It was great to see this vessel, masts down and travelling quite fast under engine power, on Greenland Dock today.    I couldn't see her name, and I am useless at identifying anything that has less than three masts and no cargo hold, but she was a really splendidly pretty picture in the sunshine.   If anyone knows her name or anything about her, it would be great if you could let me know.