The graphic shows 1.5 for small, 1 for large, and 0.5 for colossal, which doesn't match the table. They messed up something. /u/JagexLight, which speed is the correct one for the colossal ship?
Thanks for the tag. I've looked at our internal documentation and the table in the blog is what matches the internal doc, so I would say use the table on the blog rather than the graphic for now.
I'll double-check with the team tomorrow to be 100% sure. We can easily get the graphic amended if that was incorrect. Apologies for the inconvenience it has been quite a tight turnaround to get all materials to you in good time!