Originally Posted by Deniz
But I am pretty sure that is manageable in a year to circumnavigate.
Why would you want to do that? Surely the point of sailing around the world is to see something and not just to have a very uncomfortable time at sea? If that is all you want then just head our into the Atlantic, cross to the Caribbean and then head northwards until you reach Bermuda and then turn eastwards back to Europe. In general, you will have following winds, be quite uncomfortable some of the time and see a lot of water - which is pretty much what you would do if you tried to sail round the world at 6 knots within a year.
Aye // Stephen