Isaiah EvansonRemember you're doing those speeds in a vacuum.
I imagine it would require quite a bit of brute force to push something that big through an Earth-like atmosphere. But seeing how big some of the drives are... maybe not so far fetched.
i feel like the acceleration would take a lot longer and slowing down would be quicker. also overheating might become an issue flying too quickly. also not all those ships look especially aerodynamic.
the type 7 has probably the most flattest face