Overmod
Jones1945

The PRR Baldwin BP-20 "Passenger Shark" and the postwar Broadway Limited is available for train simulator now
Have they modeled the actual physics for these locomotives, particularly their rapid acceleration potential compared to contemporary competition (and even some modern designs?)
These things could accelerate radically better than, say, E units, both from a standing start and in the low-to-intermediate range above the low-speed motor limitations for hexapoles. That is one substantial reason they found a home on the Long Branch commuter trains, and were happily kept running until PRR for "political" reasons decided to get rid of all the minority locomotives on a prioritized basis in 1963.
Yes, Mr. Overmod. The physic engine in DTM's Train Simulator aka TS2019 is far better than Trainz in my opinion, the vehicle dynamic is calculated and rendered in a much more realistic way. *Base on my observation, the rail and the wheel are 3D solid objects so that friction between the rail and the driver of the locomotives was calculated and rendered. Unlike Trainz, where the rail and the driver are just a 3D mesh with surfaces. Therefore, if you create a driver with a shorter axle length than normal in DTM's 2019, the wheel will be swaying left and right on the track.
However, many users suspect that the script of the Broadway Limited is bugged, it seems that the train break is applied all the time and can't be released, causing brakes dragging on the whole train. We stated publicly on our YouTube channel that we inclined to not recommend this product until DTM fixed the problem, that's why I didn't provide the direct link of the DLC. I believe our forumer who interested in Train Simulation are smart enough to read the reviews before buying, although the DLC only worth about 15 USD and we still purchased it after reading the reviews.
Regarding the realism of this DLC/Add-on, I would like to leave it to you to decide. I recorded a video which consists of 3 parts, part II starting from 10:00, the last one starting from 24:23, I will keep adding timestamp and description on the YouTube page and here as well. The Video is unlisted but it should be working for everyone who knows the link of it:
PRR BP-20 TESTING
New Haven to New York Penn Station, 0-0.6% gradient, 545-1245 tons stock)
Part I: BP-20 A unit + 545 tons passenger stock: 52mph reached (08:54), break Test (09:05)
Part II ( 10:00 ) A-B-A unit + 545 tons passenger stock: 60mph reached (12:39), 65mph reached (13:50), hitting top speed 70mph (16:48), testing the speed of the A-B-A set (18:35), hitting 84.3mph (21:34), break Test (22:04) engine full stop (23:36)
Part III (24:23 ) A-B-A unit + 1245 tons passenger stock: 33.1mph reached (29:33), 39.7mph reached (32.40), waiting for Overmod in the observation car (35:56), passenger car truck close up and loco brake test (36:50), emergency brake testing (37:29),train full stop (37:51), testing the speed of the A-B-A set (38:54), 82.5mph reached (42:42), emergency brake testing (43:16), full stop (44:02)
https://www.youtube.com/watch?v=jPf8b9IKVVY
Overmod
The potentially sad part of this is that PRR famously rebuilt a set of Sharks with Alco running gear, but little of the Westinghouse electrical gear was compatible so what you wound up with was essentially an Alco locomotive 'above the deck'. Meanwhile of course PRR had rather famously tested a six-motor 2400hp Alco as a commuter locomotive and found it really capable ... but had no money to spend on acquiring a fleet for what was by then a money-losing set of operations. Might have been interesting to see what a government-sponsored rebuild after the mid-Sixties might have involved, with a 2400hp 251 powering hexapole motors (or, grudgingly, heavy-frame 752s or even 751s if you needed to keep it 'all in the family' with Alco motor-parts support). Project might even have kept Alco in the locomotive market longer...
Ah, "the saddest words of tongue or pen ..."*
*(I could quote the original, but both the scansion and the meter suck... I use Euclid's famous phrase to fill it out in my version)
I am really not familiar with PRR's diesels, I assume that the Alco diesel you mentioned was RSD-12 isn't it? I think the front end design of the Alco RS11 was quite good looking, if the RSD-12 which had a similar front end design had a chance to became the prime power of PRR's commuter trains (or even became the prime power for crack trains), that would be very cool. (I don't like diesel for freight service or ATSF's EMD F7s just because they were using a 4-wheel truck and had a rather short body length)
The scenario of Maud Muller and the Judge could be applied to the train simulation world. It might have been the best educational software if Microsoft didn't cancel their "Train Simulator 2" in 2002 (?), it would have been a perfect combination of DTM's Train Simulator and Trainz offering up to date graphic, best physic engine and diverse (Free) content.
Now, folks who love America's classic locomotive have no choice but to use Trainz, which allow user to create their own content (but with less impressive graphic) while DTM's Train Simulator mainly focus on EU market and seldom creating any classic train content of North America.
But we probably will never understand the Eternal's will...... only God knows what would have happened if Maud Muller married the Judge! Though, in real life, I am quite sure that Blanche Monnier's mother was as vicious as the devil!
What might have been if Monnier eloped with her boyfriend that night they hesitated?