What is this?

Update 4pm: It seems it was quite easy a test and almost immediately some of the readers recognized the D-One. Well, guess who was having a blast with one of those yachts this afternoon in Valencia? Once again, conditions were just perfect and Valencia's bright sun was putting more coal into the sea breeze steam engine. The forecast for tomorrow is pretty similar and as a result the RC44's will most probably have a very nice race.


While we're waiting for the RC44 Valencia Cup to start why not have a quick quiz? What boat is this?