coppercapped
Established Member
As it's ROG's own money that ROG is spending, you don't seriously think that it hasn't thought very seriously and deeply about both the assumptions and the calculations it has made before deciding to go ahead with these new locomotives?I'm in no doubt that the calculations themselves are correct. The questions arise about the validity / accuracy of the assumptions that are incorporated within the calculations, eg re increased availability, lower operating costs, etc.
Why the assumption that it doesn't know what it is doing?
Can you give examples of the freight flows you are referring to, please? As practically all commercial freight uses long, heavy, bogied vehicles I find it hard to understand where lightly loaded vehicles running on sharp curves could be financially viable for a freight operator.The routes and haulage in question would be some of the really tight curvature routes or those with earthworks/civils that cannot allow high axle load vehicles such as the class 88's.
There are still a lot of routes that will not permit RA7 locomotives like cl88 ,and even some RA6 such as cl47, hence why the 20's and 37's have been in service for so long.
These 60 year old locomotives are now being withdrawn. They may have had a long life because they were cheap to buy, but their time has passed.

