hexagon789
Veteran Member
Seeing as this has pretty much developed into a seperate thread, I thought I'd better split it off before it takes the ScotRail HST thread anymore off topic.
I seem to find suggestions it's 15% better, but also suggestions it's not. The VP185 was said to be 15% better, but once in service BR found it was actually about 7% because the Valentas were doing more work initially!
I've seen the 15% quoted a few times, but it's not the only figure.
A 2+4 would use less fuel than 2+8 though.
Safe to assume that the figure for MTUs is lower then?
I seem to find suggestions it's 15% better, but also suggestions it's not. The VP185 was said to be 15% better, but once in service BR found it was actually about 7% because the Valentas were doing more work initially!
Both the figures I've quoted were from the RSSB Traction Energy Metrics Report which no longer seems to be on line.
I think this was most likely for the Valenta Engine but Im not sure. MTUs blurb says that the replacement engine could save 15% on the Valentas.
If I had to place a bet I'd go for the 2 +4 car HST running on both power cars using about 5 times the fuel of a 3 car 170.
I've seen the 15% quoted a few times, but it's not the only figure.
A 2+4 would use less fuel than 2+8 though.