These were flagged that way to prevent accidental deletions, but in retrospect someone could just reclaim the ship if they did that, so I'll go ahead and remove the flag and allow them to be deleted. Thanks for the bug report.
this is what happens when you rush into buying something you don't know about.
it will be next week now before the bug gets fixed if it gets noticed by that time they would have probably Nerf your ships .
i put a blog on forums under the c store purchases headed consumer rights read it you might learn something.