Howard T. Map-addict wrote:The Ringworld is not a ship,
it is a fixed-position artifact,
but remember that the Puppeteers were migration
on five moving planets!
HTMBohica wrote:The only thing that comes to mind is Larry Niven's Ringworld, although I don't know if that counts as a "ship." even though is is an artificial construct.
Read "Ringworlds Children". The Protectors reverse engineer the hyperdrive by gutting the puppeteer ship and transform the superconductor grid in the Ringworld into a hyperdrive, thus turning a fixed artifact into an FTL ship.