Kelvin-type starships had exposed turboshafts in engineering. (Star Trek) In the 2270s, Rear Admiral James T. Kirk asked a yeoman where Turboshaft 8 was located on the refitted USS Enterprise. (Star Trek: The Motion Picture) Kirk, Spock and McCoy were forced to climb the turboshaft of the USS Enterprise-A while attempting to escape Sybok, as the turbolifts were down. Despite the fact that Kirk and McCoy began climbing, Spock opted for using his jet boots to expedite the journey. (Star Trek V: The Final Frontier)