In addition to different backgrounds and histories, the races have characteristic philosophies of starship design. Minmatar ships tend to be quite fast but fragile, and rely on their high speed and maneuverability to evade the tracking systems of heavier weapons, while using projectile weapons such as artillery or autocannons, more sophisticated kin to today's munitions technology. Amarr ships are ponderous, densely armored, and pack batteries of powerful laser-based energy weaponry. Gallente ships are sleek and designed to favor armor plating; they specialize in deploying fleets of robotic drones while mounting hybrid weapons that operate using superconducting magnets to accelerate mass toward targets at great speed (see Railgun). Finally, Caldari ships are typically poorly armored and not particularly fast but utilize powerful energy shields, and make extensive use of torpedo/missile launchers and hybrid guns, favoring engagement at extreme ranges. However, there are exceptions to these general rules in each race.