Playing with a GE44 tonner pulling 30 mixed cars up a 4% grade at half power, started wondering if all the MSTS guys were right about Trainz physics. Apparently not in general;
Dunno how accurate the geeps and hoppers are, but it's close to what I remember from Plainsman's MSTS physics - rule of thumb for 3% grade, one engine for every six loaded cars. This test I used a 20mph running start at the bottom of the 3% grade for all three. The 2 geeps with 18 loaded hoppers dropped to zero and started sliding back about half a mile up, the 2 geeps with the empties slowed to 5mph near the summit but made it all the way, so it does indeed account for the loads. With the extra Alco RS11 adding muscle the loaded train slowed to a minimum of 2mph, but did groan all the way up.
Again no clue about accuracy - I've been told the mass in each car is kilograms, by the time I convert to pounds and then tons while adding a French postage stamp and paying the European Union tax on metric math, take three aspirins and it comes out around 150 tons which don't seem right. Anyway it feels right, now to try it with that supercharged 44 tonner and see where that goes.
Dunno how accurate the geeps and hoppers are, but it's close to what I remember from Plainsman's MSTS physics - rule of thumb for 3% grade, one engine for every six loaded cars. This test I used a 20mph running start at the bottom of the 3% grade for all three. The 2 geeps with 18 loaded hoppers dropped to zero and started sliding back about half a mile up, the 2 geeps with the empties slowed to 5mph near the summit but made it all the way, so it does indeed account for the loads. With the extra Alco RS11 adding muscle the loaded train slowed to a minimum of 2mph, but did groan all the way up.
Again no clue about accuracy - I've been told the mass in each car is kilograms, by the time I convert to pounds and then tons while adding a French postage stamp and paying the European Union tax on metric math, take three aspirins and it comes out around 150 tons which don't seem right. Anyway it feels right, now to try it with that supercharged 44 tonner and see where that goes.
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