I have watched a couple of You tube videos of people driving the Class 166 in the GWR scenario. Some have commented on the peculiar sound of the 166 engines as it passes 60mph. Now I don’t want to teach Granny to suck eggs, but for those that don’t know this, if I remember right, is where the automatic gear box reaches a speed where the gears can drop into a ratio of 1:1. If I’m wrong I would accept the correction from someone in the know. Cheers.
That's right, it always changes gear at 63/64mph, I haven't noticed any difference in acceleration although it may be that because the 166 and 165 are roughly the same (I know we don't have the 165), but the 166 can reach 90mph and the 165 only 75mph. It might be the 166 needs a gearbox because it can achieve this higher speed whereas the 165 may not. Having been on board a 166 recently, I'm certain there was a gear change as the train was nearing its top speed.
It is wrong and the acceleration between 0-40mph is way too fast. Like a whole minute too fast. The gear change happens in real life at 57/58mph and not at 63/64mph. I’ve reported it several times but it has … like every other physics comment I have submitted to them been totally ignored. Too much effort to fix it apparently.
A suggestion I have seen - not prototypical - is to use no more than throttle 5 until around 50mph in order to equate to correct acceleration. It occurs to me to wonder whether Simugraph uses actual physics or sets of look-up tables. In the world of flight simulators, look-up tables, as used by such as MSFS, can lead to inconsistent effects, compared to X-Plane, which uses actual physical inputs and models the influence on the plane.
