Robot hovercraft
A robot hovercraft was mechanical anti-gravity vehicle that was under the control of the master computer of the Shore Leave Planet. This type of vehicle was triangular shaped in the horizontal direction, with three extendable arms at each corner of the triangle, with opposable pincers. 

During the 's second visit to the Shore Leave Planet, such a vehicle was lured into taking Mr. Spock into the planet's underground complex, in an attempt to rescue Uhura, who herself was captured by one such hovercraft. Upon viewing the hovercraft in operation, Sulu likened it to "a mechanical nursemaid." ()

Technology
Vehicles
Memory Alpha articles named from scripts