The picture on the right was taken on 16th March 2013, when the little boat joined Snoopy Sloop 9 on 24/7 duty - by accident: the twin brothers say "hello" as they repeatedly try to bump into each other.
Videos of Snoopy's Robot Windmill Boat follow, starting with the first in 2013. Below that are two pictures from 2013.
The windmill made this small boat a bit too top-heavy - but it worked for a minute or two ! :-)
Without the windmill, this little robot boat, with the same autopilot, completed the Bray Lake Test route, of 1/3 mile, in 11.5 minutes - that's 1.75 mph.