EMD/CAT High(er) Speed Locomotive

Trains Magazine Locomotives
1

http://www.progressrail.com/docs/passenger-2.pdf

http://www.progressrail.com/transit-locomotives-passenger.asp

I see a lot of market for a product like this a high speed train that doesn’t require electrification or course track upgrades are a must. I wonder if this is a progression (see what I did there [:D]) of the f40, F59phi etc or an entirely new design. The artist rendering doesn’t tell the whole story though

2

only thing interesting is each axel is individually controlled instead of the usual EMD TRUCK CONTROL.

3

“Frame-mounted” motors sounds like none of the weight is on the trucks.

4

Maybe it’s just me, but Besides looking pretty sexy(?).[:-,]

I wonder how that big fancy front end would fare in a Highway/Rail Grade Crossing accident. Looks pretty flimsy with lots of stuff to go broken if it tagged something like a dump truck or load of logs ( ie: Some of NC DOT’S incidents) or AMTRAK’s, as well.

My issue would be Train Crew Safety of survival in an accident. Reference some of the discussions on these Forums, both previous and on-going, about the Cab (and Construction) safety aspects. [2c]

5

It probably has a two layer nose, an outer one made of Fiberglass or Carbon Fiber for looks and an inner steel one for collision protection, like the F59PHi.

6

So this is the first announcement of a cat powered EMD loco is it not?

I wonder which cat Engine? Obviously something Tier4.

Ignoring the various methods of getting to Tier 4, is there something about Cat engines that might make them better suited to this task?

Lets assume for the moment that this decision isn’t just internal politics, but a legitimate design choice.

I mean, EMD “made” the GP20D/GP15D which were cat powered, so clearly there are potential markets where the 710 Tier 4 or not isn’t the right answer.

7

The GP20D’s were aimed at the same market segment that the GP22ECO is being targeted at now,so maybe the 710 is the better choice in that application…

In the case of the proposed light weight,high speed passenger locomotive Cat seems to be aiming for a much lighter prime mover than a 710. Thus it will be one of their newer high RPM engines…

8

Aren’t some builders using medium speed Cat engines, instead of low speed 710s, to keep within weight limits? If you’re trying to pack 4000+ HP on a BB frame that should be a factor.

9

I have read complaints about the GP20Ds being slippery.

This is what I was thinking without knowing it. There is an engineering reason for not using the 710 (or for that matter the H engine)

10

I think the CAT is probably used not only for tier 4 emissions but also power to weight ratio a critical factor with speeds higher than 120mph. The engines EMD currently uses are quite heavy and meant for freight

11

Back in 1938 when the 567 engine was introduced at the time it was considered to be a lightweight - high speed design. Hmmmmmmm…

12

SEVERAL GOOD POINTS previously.

  1. can move 8 multilevels at 125 with 2 locos? awful lot of power

  2. TE listed at 65,000# > ambigious whether 1 loco or 2 ?

  3. and what is P-2 forces less than 82,000 mean?