What is "cop-tur"

Cop-Tur is the name of several fictional characters in the Gobots, Robo Machines and Transformers toy lines, and the subsequent fiction. They transform into futuristic helicopters. They are all based on adaptations of the character Gyro Robo from the Machine Robo toy line. Cop-Tur first appeared in America as one of the main villains in the Challenge of the Gobots animated series.