The Wizard planned a fleet of airships, which would allow Oz to stay in contact with its colonies in the Nonestic Ocean. Captain Samuel Salt, meanwhile, would discover these colonies for Oz and plant the Ozian flag, with the inhabitants' consent. (Captain Salt in Oz) By the following year, a new model of Ozoplane had been invented, making the earlier model obsolete. So the old Ozoplane was given to Jack Pumpkinhead, who used it as a second home. (The Wonder City of Oz)