In http://arxiv.org/abs/0908.1803v1" [Broken], 2003, Robert Frisbee offers some ideas on the design of an antimatter rocket. Crane and Westmoreland concentrate more on the possibility of a black hole starship, rather than the size or shape of the craft. I'm wondering, how many of the constraints that influence Frisbee's design would carry over to a black hole starship? In particular, Frisbee's design calls for a long, needle-like craft, much of its length being taken up with a radiation shield (5.15*105 metres) and refrigerator (7.6*104 metres), p. 27. Would a ship powered by Hawking radiation from a subatomic black hole be likely to have have similar requirements?