InTheEastMids
Member
- Joined
- 31 Jan 2016
- Messages
- 718
Totally subscribed. But he's Theresa May's bag holder, so will only go when she goes. May that day hasten on.
It looks increasingly likely that the incompatible red lines on Brexit (no hard border, no CU) and the schism in the Tory party that will happen when somebody is disappointed will see to that. Anybody know what the official Moggmentum position on electrification is?
It appears the current IEP units are lacking in power when in diesel mode, resulting in less acceleration at higher speeds.
Totally agree with this - it's a different set of requirements to the 800s in particular, obviously more similar to the 802, but not identical
I think a certain amount of battery assistance to boost performance on diesel is a distinct possibility as hybrid/bimode technology matures. For instance, if you want an extra 1 MW for say 10 minutes to get from say 75 to 125 mph, then you're talking about a usable capacity of 160 kWh, so maybe an actual of 200 kWh, which is only about double what a Tesla Model S is packing - about 1100 kg. And if they're knackered after 5 years you unscrew them from the bottom of the train, fit new ones and repackage the old ones for static applications e.g. grid support.
Market Harborough's new platforms will accommodate 240 metre trains, and to me this suggests that the winning bid might therefore lead to 24 meter carriages? (i.e. because 5x24 m would be operationally easier than a mix of 4x26 m and 5x26 m trains)
So a 5x24M hybrid diesel with maybe 2MW continuous / 3MW "sprint" mode away from the wires? Time for Hitachi et al to walk the talk about "flexible, modular engineering platforms".
And do we need the to match a Cl222 on diesel? The earlier discussion suggested 222 is only 2-3 minutes better than an HST on a non-stop run like Leicester to London. So how about a Nottingham stopper? In the new timetable this might be Nottingham-Beeston-Loughborough-Leicester-Harborough-Kettering (at which point it switches to electrical power). Can anybody provide some informed speculation about real-world timings that an HST, 802 and 222 might achieve?