Hi Ivan, Perhaps you should think about the phrasing of the sentence. Naturally, a small ship would be manoeuvrable, agile, nimble and quick. Therefore; 'The ship is small and nimble/agile/quick' would be better, rather than using 'but'. All of the describing words you chose are appropriate to describe the ship, but I would consider not using 'quick', and using fast instead. I hope this helps, Tom