QUOTE: Originally posted by wmlurgan One thing for sure, they will never be nuclear powered. I would even wonder about electric but one never knows.
QUOTE: Wait til EMD introduces the SD100i-AC/DC-CFC-FREE/MAC-3!! Who knows what the technology will bring, but it recent offerings from EMD are the start of a trend, they wont do any thing but get uglier!.
QUOTE: What will they look like, what will they run on, how will they be powered?
QUOTE: Originally posted by tatans Turbine (jet engine technology) electric powered engines are on the drawing boards already. Just check the smaller size, more H.P. less maintenance , newer jet aircraft engines being used today and the size of the existing monster diesel engines that use 1950's technology. Smaller engines--less maintenance-- and better fuel consumption will be here sooner than you think, it's all dollars.
QUOTE: But I don't think that the problems with UP's turbine engines have been overcome. First, the engines were extremely noisy, which relegated them to extremely remote areas (they weren't even able to use them alongside cornfields and farms, they were that loud), and there isn't anything new there. Second, the turbines almost used as much fuel when idling as when running, and so they were limited to mainlines, and even then, you couldn't have them sitting waiting for clearance for too long. And the startup/shutdown sequence was so involved that they had a small 350 hp or so diesel engine inside that was used for moving the engine itself around the yard (when light, of course).
Dan
Doug Murphy 'We few, we happy few, we band of brothers...' Henry V.
QUOTE: Originally posted by AltonFan QUOTE: But I don't think that the problems with UP's turbine engines have been overcome. First, the engines were extremely noisy, which relegated them to extremely remote areas (they weren't even able to use them alongside cornfields and farms, they were that loud), and there isn't anything new there. Second, the turbines almost used as much fuel when idling as when running, and so they were limited to mainlines, and even then, you couldn't have them sitting waiting for clearance for too long. And the startup/shutdown sequence was so involved that they had a small 350 hp or so diesel engine inside that was used for moving the engine itself around the yard (when light, of course). I was told part of the reason the military adopted a turbine engine for the Abrams tank was that its turbine was quieter than a conventional diesel motor. OTOH, fuel efficiency is extemely poor. (I heard something like three gallons to the mile.) So maybe turbines might be worth reconsidering.