Nightrider

Nightrider. The most powerful self-commanding space war craft ever built. Its computerized human brain is nearly perfect, its six-person crew virtually unnecessary. Until Nightrider begins making mistakes.
The flesh-and-blood destroyers are finishing uip a mission of deadly discipline on the rebel outpost of Planet Hel. But the ultimate war machine has only just begun to fight.
Its new enemies: The men and women who taught it how to kill – the members of its own crew . . .