I was watching a show whee they interviewed Tiger and Sherman crews and they were talking about the difference in turret traversing time when the engine was on versus the engine off. I haven't noticed but, is this something that HTC models? One Tiger crewman said it was maybe 2 minutes for a full 360, with the engine on, and, 5-6 if they had to do it by hand with the engine off, no times were given by the Sherman crews.