Solar Sailboats are a type of (presumably Jovian) spaceship.
Description[]
After Donald Duck complimented his Space Navigation Ark, a Jovian Fisherman once answered, bashfully, that it was "nothing" compared next to a Solar Sailboat, apparently a much larger and more impressive type of spacecraft.
Behind the scenes[]
Solars Sailboats are mentioned in the 1995 The Return of Rebo.