Entropy, I had the same evil worry about the government minions requiring essentially ‘de novo’ documentation from a Tier 3 version of an accepted Tier 4 design. As erikem said, there is overall “benefit” (by government-official standards) if older and lower-tier units are preferentially retired in favor of new tier-3-compliant hp equivalent. In addition to the adjustment of formal NO target level I mentioned, seems to me there should be legislation that (1) gives at least streamlined and perhaps largely pro forma review and approval to lower-tier versions of designs derived from proven higher-tier units and their test data; and (2) provides some real incentive (not just more annoying sticks and mandates) for railroads to retire ‘worse’ power in return for some calculated replacement basis of Tier 3, not higher, power. I tremble to mention the ‘permanent prime-mover retirement‘ methods as used in Obama’s original new-car stimulus, but perhaps scrapping older blocks would be enough...
Michigan Dose anyone think that EMD/Progress rail will build a SD70Ace with the Tier 3 1010 motor without all the emissions crap now that Trump has relaxed the emission standard in the country? Ed
Dose anyone think that EMD/Progress rail will build a SD70Ace with the Tier 3 1010 motor without all the emissions crap now that Trump has relaxed the emission standard in the country?
Ed
Emission standards are still Tier 4 for locomotoves. Its just Trump may have stalled CAFE regulation for a few years, which only applies to automotive.
Funny I was recently thinking about this, if the UP Tier 4 credit loco's are any indication, I dont foresee enough demand to create a Tier 3 version of the "T4 ACe", its not as easy as taking the "emissions crap" off as you call it. You would have to certify it to Tier 3, develop tier 3 parts, Progress already has a Tier 3 loco with 710, work was already done.
MichiganDose anyone think that EMD/Progress rail will build a SD70Ace with the Tier 3 1010 motor without all the emissions crap now that Trump has relaxed the emission standard in the country?
Did I miss something? All I read here in Germany was that the Trump administration considered to relax the greenhouse gas emission standards for new cars.Regards, Volker
One very questionable assumption with respect to changes in emissions regulations is that the changes will not significantly affect sales. It isn't out of the question that dropping tier 4 regulations for a while and sticking with tier 3 may result in lower emissions as it would be more likely that the pre-tier 3 units would be replaced by tier 3 unts.
I beleve the 1010J 12 cylinder is the future with the isolated prime mover, cab and other improvement. I would be testing this motor without the emissions equipment . do to slow sales of tier 4 units.
Let me respond to your question with a question: does anyone think Progress would go to the time and trouble of DFMing a 1010-based design like that when the Trump administration might not persist past, effectively, 2020?
I, personally, think the ‘sense’ would be to rationalize NO emission standards for locomotives, particularly in light of the present disconnect in classical atmospheric conversion of combustion NO to NO2 ... but since the very first effect of this would likely be to allow legal use of 710 engine architecture, it is little if any help toward introducing the 1010 domestically.
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