longiron, on 27 April 2018 - 04:45 AM, said:
The unique thing about MSTS/OR is the physics is completely separate from the content - i.e. any ENG file can be associated with any S file. So we don't need models for each and every configuration to be tested, just appropriate ENG files with just one S file.
Whilst I understand the ability to use one locomotive shape, and then apply different ENG files to it, I believe that this approach would somewhat defeat the outcome that I was trying to achieve.
One of my aims was to demonstrate the realism of OR and its capabilities to configure a locomotive to perform within reasonable tolerances of the real life locomotive. I feel that, for example, picking a shape such as an Atlantic locomotive (4-4-2) would provide an unrealistic perception if it has a 900 ton load behind it, or alternatively picking a T1 shape and then only being able to pull a Atlantic type load would also give a unrealistic perception.
These demonstration modelsshould be designed to run with representative loads. By this means I also hope to demonstrate that smaller locomotives can't necessarily haul the same load as larger locomotives. My gut feel is that this is not always understood clearly, and then bugs are reported if an overloaded train won't start or get up to a "fast enough" speed. Having a number of different "sized" models might help to demonstrate this.
longiron, on 27 April 2018 - 04:45 AM, said:
Regarding American steam locomotives - I would try to find data for a 2-8-2 configuration, as this was ubiquitous and good performance baseline.
I don't quite understand this. My thinking is that there will be a number of different (size) locomotives would be set up as examples.
The page reffered to in my earlier post shows reports that are available for some of these different locomotives, including a 2-8-2.
longiron, on 27 April 2018 - 04:45 AM, said:
Two ENG files are generally required for all articulated models (Player and AI) - and we don't have good guidelines for OR ENG setup.
As the Q2 and T1 are duplex locomotives, I don't think that they need separate ENG files, but hopefully this will be demonstrated in attempting to set them up.
Could you explain why there needs to be separate Player and AI models?
scottb613, on 27 April 2018 - 06:14 AM, said:
I think Articulated engines need remote control of the second set of cylinder cocks
Bearing in mind that we are only discussing duplex locomotives at the moment, can you provide a link to a reference that discusses these sorts of controls for duplex locomotives?
Thanks