How effective would such a ship design be? I'm not particularly talking about large or medium ram ships I'm talking about small mobile, fighter/transport ships that would have an exceptional amount of armor in a sort of spike out ahead, and would pierce a ship at full force, letting boarding parties in. They would have to be able to survive the distance traveled, and being such a high threat could make it an easy target, not to mention that it may not even work when attempting to strike a larger ship. If not, then the only other solution I could think of would be supporting weaponry that would remove the outer layer of armor as you approach, or they would attempt to strike weak spots. Cost wise these ships would most likely be inexpensive, depending on its effectiveness, and multiple could probably be stored at a time for repeated deployment. I mean.. if all else fails, could always just be an explosive "drone" of sorts.