Space travel is fraught with dangers. A failed life-support system can leave a crew desperate to find any haven where they might safely land. A failed hyperspace engine might strand them hopelessly far from the nearest repair yard. Individuals who accept these dangers need to have tremendous faith in either the quality of their craft or the mechanical skills of its crew. Even in those cases where confidence is based upon a craft’s quality and maintenance regimen, the presence of a capable mechanic can still be crucial to the ship’s ultimate survival.