edwin_m
Veteran Member
It seems the proposal is for two 200hp automotive diesel engines per power car, which are small enough to fit under the floor and presumably comply with latest emissions regulations.
Roger Ford is concerned about the hammering these engines will get with constant changes in power demand, but I'm not sure he needs to be. There was a problem with "binary driving" on HSTs in particular, but diesel locomotive engines tend to be derived from marine ones which normally run at constant settings for long periods. This isn't the case on the roads, and this engine is essentially that from a top-end Transit van. As far as I know Sprinter engines are holding up OK, and even the Valentas went for 30 years or so before replacement. These probably have to last less than half of that.
As others have said, with the people behind this I'm pretty sure they have all the angles covered. But the top speeds means if we see these at all they will be on urban commuter and maybe a few deep rural rather than interurban duties.
Roger Ford is concerned about the hammering these engines will get with constant changes in power demand, but I'm not sure he needs to be. There was a problem with "binary driving" on HSTs in particular, but diesel locomotive engines tend to be derived from marine ones which normally run at constant settings for long periods. This isn't the case on the roads, and this engine is essentially that from a top-end Transit van. As far as I know Sprinter engines are holding up OK, and even the Valentas went for 30 years or so before replacement. These probably have to last less than half of that.
As others have said, with the people behind this I'm pretty sure they have all the angles covered. But the top speeds means if we see these at all they will be on urban commuter and maybe a few deep rural rather than interurban duties.
