That's no surprise. But as I said, the difference is greater than might be expected just from the difference between inside and outside. Maybe that noise-cancelling thing is what makes it sound like the amplification of a diseased goat from the ground.
To be honest, 3/4 of a mile for 0-125 is completely unrealistic for this kind of scenario. I ran a simulation with the ACS-64 I'm currently developing for OpenBVE with 8 cars (weights made as realistic as possible; locomotive at 98t, and 8 loaded coaches at 52t each). The acceleration curve was generated to mimic the tractive effort curve (starting TE, then continuous TE at 55mph). On maximum throttle at those specs, it takes about 3 minutes (and 3.5 miles) to accelerate from a stop to 125 mph. So I wouldn't put too much stalk in those rumors of 3/4 of a mile.
You use a P-42 in case the ACS somehow damages the catenary. Don't forget this is just the initial testing, they're probably checking out some stuff to see how it does under its own power before they start to get into the heavy duty testing with long train sets and high speeds.
Thanks that makes sense
Yep. I really like the simulated rain showers. They look pretty impressive!
