 The Batboat displays include state-of-the-art 'at-a-glance' navigation and communication links, an ascent-rate alarm, a dive-time clock, and a safe-ceiling depth meter.Batboat's armaments include a pneumatic harpoon, a launching grapnel, depth charges and active-homing torpedoes.The first appearance of the Batboat was in the 1966 film "Batman".