delticdave
Member
- Joined
- 14 Apr 2017
- Messages
- 449
Yes the power to weight ratio is likely to be at current DMU levels - enough to maintain 60 to 70mph and probably reasonable acceleration..but nowhere near Class 755 levels of performance.
Chalk & cheese comparison? The Flirts are designed / built as bi-modes, whereas the 769's were not, the new trains are lighter
& with seriously high power-weight ratios, as we now know..
The 755/3xx with only two 480kW engines will out-perform any of Anglias branch-line dmus whereas the 755/4xx with twice the installed power but only 1 extra trailer have EMU performance levels.
It will be interesting to sample either variant when they are running as EMU's, with 2600kW available the 0-60 & 90 mph times might quickest in the UK.
Apart from wanting to utilize an existing asset, rather than buy new trains, I don't really understand the why the 769 project went beyond the concept stage.
If the real costs for this project were ever to be made public, I wonder if buying / leasing a new purpose-built bi-mode design would have been found to be more cost-effective?