Developed by the Terra Nova Consortium in the mid-Twenty-third Century, the slowboat was a colonial transport that enabled a Corporation who had been deeded a colony world to transport population, materials, equipment and supplies to the world in one mission. The Winglee Slowboat employs an asteroid as a spacecraft. The Pantheon-class spacecrafts were built by tunneling compartments into C-type (carbon-chondrite) asteroids having a major axis of greater than 20km and a minor axis of more than 7km. Later classes of slowboats were much larger.