New CTA 5000-series train

[iToasterman]

@mjt2102 why did it brake?

[lemac889]

Like the Big CTA logo. It's like I did it myself...

wait a minute.. I did that!

[skullcrusher301]

have you ever noticed the wirr that Bombardier trains make when they throttle up?

[cubdukat]

@skullcrusher301 The trains in LA do the same thing. I think it's the propulsion system getting up to speed or something.

[mrlal1234]

@cubdukat

Same Thing with BART's Trains

and Lirr m7's

They make the exact same sound as the BART's A types

[Amtrak1194]

@cubdukat It is the propulsion system. It's the acceleration and power to the train which creates the noise before the train gets up around track speed. New Yorks newest cars have the loudest propulsion system I've ever heard.