Turbo

Turbo was Ranger Doug's horse on Riders Radio Theater. He was "the only horse in the west with afterburners".

The Cowboy Way Segments
In Meltdown on the Mesa episodes 107 to 109, it was revealed that while Deputy Doug was trying to become a Ranger, he rode a horse named Beetlebomb. When the Deputy became Ranger, Beetlebomb was renamed Turbo by Yodel.

At the end of Meltdown on the Mesa (episode 111), Ranger Doug, riding Turbo caught Charlie after he stole money from the Riders' benefit.