It will be interesting to see what they do then if they stick to the Alstom
product when they want the next series to run up to 130 km/h. The Perth A
series has a design speed of 120 and runs up to 110. The B (and future C)
series have a design speed of 160 and run up to 130, without sacrificing
good acceleration ability.

Tony P

On Monday, 10 June 2019 07:46:36 UTC+10, Matthew Geier wrote:
>

>

> I think there is far more simpler explanation for the acceleration being

> below your expectations. It's not 'detuning'. The Metropolis trains are

> generally deployed with a maximum speed of 80km/hr and optimised for

> rapid acceleration and braking between closely spaced stations. The

> Sydney versions have a 100km/hr top speed and are running with suburban

> station spacings. They have changed the gear ratio to get the higher top

> speed and sacrificed low end torque for it.

>

>