Siemens Charger PDF

[schlimm]

http://miprc.org/Portals/7/pdfs/Siemens_Charger_locomotives_Ward_MIPRC2016AnnMtg.pdf?ver=2016-10-10-131934-007

[RME]

Thank you. 

This is a PDF of a Siemens brochure describing the Charger locomotives, for anyone reluctant to click on a link without any explanatory text.

One question: Siemens is proud to display,  prominently, "Achieved speeds in excess of 135 mph with load" (in testing at TTCI).  Be interesting to know exactly HOW MUCH 'load' produced that balancing speed - what was it that led to Lucius Beebe's comment about a champagne split or some similar item that was billed 'serves two'?  If the load corresponded to the equivalent of two dyspeptic inmates of an orphanage for dwarfs I won't be nearly as impressed as Siemens seems to want me to be...

[BaltACD]

RME

Thank you. 

This is a PDF of a Siemens brochure describing the Charger locomotives, for anyone reluctant to click on a link without any explanatory text.

One question: Siemens is proud to display,  prominently, "Achieved speeds in excess of 135 mph with load" (in testing at TTCI).  Be interesting to know exactly HOW MUCH 'load' produced that balancing speed - what was it that led to Lucius Beebe's comment about a champagne split or some similar item that was billed 'serves two'?  If the load corresponded to the equivalent of two dyspeptic inmates of an orphanage for dwarfs I won't be nearly as impressed as Siemens seems to want me to be...

The 'load' that was sent to TTCI for the testing were 4 MARC commuter cars.  Not exactly a 18 car Congressional or a 25+ car City of Everywhere.  But a load, never the less.

[Buslist]

BaltACD

 

 

RME

Thank you. 

This is a PDF of a Siemens brochure describing the Charger locomotives, for anyone reluctant to click on a link without any explanatory text.

One question: Siemens is proud to display,  prominently, "Achieved speeds in excess of 135 mph with load" (in testing at TTCI).  Be interesting to know exactly HOW MUCH 'load' produced that balancing speed - what was it that led to Lucius Beebe's comment about a champagne split or some similar item that was billed 'serves two'?  If the load corresponded to the equivalent of two dyspeptic inmates of an orphanage for dwarfs I won't be nearly as impressed as Siemens seems to want me to be...

 

 

The 'load' that was sent to TTCI for the testing were 4 MARC commuter cars.  Not exactly a 18 car Congressional or a 25+ car City of Everywhere.  But a load, never the less.

 

Couple of things here, The speeds "in excess of 135" was required by contract. FRA requires tests at 10% over the certified operating speed (125). So 138 is no surprise and the certified 125 maxium operating speed could not have been achieved without it. The load in this case was all 4 of the MARC cars.

[RME]

Buslist

So 138 is no surprise

Bet it's a surprise to the folks at EMD who said this locomotive couldn't even get past 123mph with a train!

[Buslist]

RME

 

 

Buslist

So 138 is no surprise

 

 

Bet it's a surprise to the folks at EMD who said this locomotive couldn't even get past 123mph with a train!

 

Wouldn't have been a surprise to their test engineers, they would have had to achieve the same thing. The suit was great theater, buy American and all that.

And do we really think Siemens would have let this go forward if they had any inkling that they would fail on their first incursion into the North American locomotive market?

[BaltACD]

Buslist

 

BaltACD

 

RME

Thank you. 

This is a PDF of a Siemens brochure describing the Charger locomotives, for anyone reluctant to click on a link without any explanatory text.

One question: Siemens is proud to display,  prominently, "Achieved speeds in excess of 135 mph with load" (in testing at TTCI).  Be interesting to know exactly HOW MUCH 'load' produced that balancing speed - what was it that led to Lucius Beebe's comment about a champagne split or some similar item that was billed 'serves two'?  If the load corresponded to the equivalent of two dyspeptic inmates of an orphanage for dwarfs I won't be nearly as impressed as Siemens seems to want me to be... 

The 'load' that was sent to TTCI for the testing were 4 MARC commuter cars.  Not exactly a 18 car Congressional or a 25+ car City of Everywhere.  But a load, never the less. 

Couple of things here, The speeds "in excess of 135" was required by contract. FRA requires tests at 10% over the certified operating speed (125). So 138 is no surprise and the certified 125 maxium operating speed could not have been achieved without it. The load in this case was all 4 of the MARC cars.

Didn't know the MARC cars were good for that kind of speed.

[blue streak 1]

BaltACD

Didn't know the MARC cars were good for that kind of speed.

 

Can we suspect that the MARC car are certified to 125 and that that certification speed required the 138 operation ?. Or It may be that the operation of the Sprinters at TTC did that 10% (138) for the MARC cars as well ? Any test at the TTC always involves many tests including items not related at all.

For example:

A train test might test a certain new track design. 

[Buslist]

blue streak 1

 

 

BaltACD

Didn't know the MARC cars were good for that kind of speed.

 

 

 

 

Can we suspect that the MARC car are certified to 125 and that that certification speed required the 138 operation ?. Or It may be that the operation of the Sprinters at TTC did that 10% (138) for the MARC cars as well ? Any test at the TTC always involves many tests including items not related at all.

For example:

A train test might test a certain new track design. 

 

No new track designs are tested of the RTT (high speed loop) they would always occur on the HTL, max speed 40 MPH.

And yes the cars probably had the 138 operation when new. To do that certification now would require the use of an instrumented wheelset that I can't imagine any of the participants in this test paying for.

The statement that "Any test at the TTC involves many tests" is rarely true with the exception of activities on the HTL.

[RME]

Buslist

FRA requires tests at 10% over the certified operating speed (125)

When did they revise 49 CFR 213.345, which I distinctly remember calling for only 5mph over rated maximum speed for testing?  Even the MCAT simulation testing protocol in appendix D only called for 5 over.

(BTW - for those readers getting a headache remembering what track class goes with what speed, the lower classes are in 213.9, and the higher ones in 213.307.  125mph max is class 7.)