hooverboy
On Moderation
- Joined
- 12 Oct 2017
- Messages
- 1,372
probably more to do with 170's being hydraulic transmission. Not so efficient going from a standing start.According to Marsdens Rolling Stock Review (2018 edition) the 755/3's are rated @960 kW on diesel, v a 3-car 170 rated at 945 kW. Not so sure re. the respective power to weight ratios but the the Voith T211r transmissions might be less efficient than the Stadler gen-set drives.
a lot of juice lost through torque convertors until the gear switches info the last stage of final drive.
same with sprinters t.b.h..