edwardk, on 23 October 2020 - 03:01 PM, said:
From what I am noticing, the combination MaxPower(3100.4kW)(4,157hp) and ORTSDieselEngineMaxPower(3281kW)(4400hp) may have issues. I am noticing that the first Power column is falling short 100hp or so when running at full throttle. I did try using Watts and the result is the same. I was leaning towards a conversion issue with the HUD, but I am now wondering if this is internal. The basic physics from what I have read should only need the above 2 items. Is this still the case or am I missing another ORTS entry? As it is, I would have to increase the MaxPower() value to get the expected results.
The value shown in the HuD on the LHS is the required power to overcome the current load resistance (hence why it is always changing), not the available power that the locomotive can produce. This power is capped at the value configured in the MaxPower parameter.
For a train to move, the value in the HuD should always be slightly less then the MaxPower value, otherwise the "retarding" force and the "pulling" force would be balanced, and the train would not move.
To correctly test whether a locomotive is correctly setup we need a "real life" scenario which gives us the following three test points - tonnage rating, ruling gradient, and speed of travel expected. The train should be able to meet these criteria.
Have a look at this
stock.
If you still think that there is an issue, then use the above stock to highlight your concerns.
Thanks