GE Evolution

[Anonymous]

Does anyone know more about this locomotive?
I read about on a train site and im curious.
Thanks.

[ndbprr]

There is nothing in your post that would allow someone to even know what locomotive you are refering to. please post more information as GE has made everything from 44ton to 5000 HP engines.

[Anonymous]

QUOTE: Originally posted by JCtrain

Does anyone know more about this locomotive?

Yes.

Someone does know a lot more about this locomotive.

;-)

[M636C]

There are two versions of the "GE Evolution" series locomotive, one with AC traction motors and one with DC traction motors.

They are called ES44AC and ES44DC respectively, and are direct replacements for the AC4400CW and the Dash9-44CW and are generally similar in appearance except that the radiator section looks a lot larger (deeper and longer).

While the older locomotives used GE FDL-16 diesel engines as have been used since 1959, the ES series use a new V-12 engine based on the 16 cylinder HDL engine used in the AC6000 locomotive, but with many improvements. The new engine is called the "GEVO" engine.

The main change, apart from the engine, is the introduction of air-to-air intercooling. Intercooling cools air after it has passed through the turbocharger and has been compressed to a higher pressure, which allows more air to be forced into the cylinder, increasing engine power. To date most locomotives used water as the coolant in the intercooler, which was in turn cooled in the locomotive radiators. By using air to cool the hot compressed air, the weight is reduced and the efficiency is increased.

The ES44 locomotives have one big radiator fan, and two smaller fans in front of that, just to cool the compressed inlet air to the engine.

The locomotive still looks a lot like a normal GE, but more like a small AC6000 rather than an AC4400.

Peter

[Anonymous]

I HAD A UP #5267 THE OTHER DAY A ES44AC EVOLUTION AND I WAS EXTREEMLY DISAPOINTED. THE 2 ENGINES SHOULD HAVE PULLED THE 122 CARS I HAD LIKE NOTHING BUT THEY ARE SO FUEL CONSERVATIVE THAT I NEVER GOT ABOVE 40 MPH UNLESS GOING DOWN HILL. THE DYNAMIC BRAKES WERE A JOKE AT ALL SPEEDS. AGAIN SAVING FUEL BUT NOT MOVING FREIGHT. GIVE ME 2 SD 50'S ANY DAY!!

ROGER

[nbrodar]

As prototypes go, the GEVos are poor engines. No matter what the rating book says, they are just about equal to a SD40-2, and the 40s ride a whole lot better. And the dynamic brakes are worthless. They may be fuel efficent, but they can't get out of their own way.

Nick

[BigJim]

Dispite what you may have read in the full page ads in USA Today an others;
I concur with the two gentlemen above.
GE must have hired the same bunch of admen from the UP that has everyone thinking that the Big Boy was the greatest locomotive since stink on you know what!
Look here;
http://www.trains.com/community/forum/topic.asp?TOPIC_ID=60348

[Anonymous]

GEVO's are basically AC4400CWs and 9-44CWs with the same FDL engine only with the new Tier 2 emmisions equipment bolted on. They also make that weird ES40DC for Norfolk Southern. Blech. Give me an SD70ACe or other EMD anyday.