BNSF GEVO AC4400 and AC45.

[traingeek087]

Train watching last night and noticed the light on the new AC4400s that BNSF has purchased is lower. But this is only on the 5700 series. Also I've noticed that the radiators are longer along the tops of the engine than before. I've only seen a few handfulls of these new engines go through so I haven't noticed all of the details yet. My question to you is two things.
1. Are these new engines called AC4400s or AC45s?
2. What are the numbers for these and how many did BNSF buy? (I believe it was 30 but I might be wrong.)

[Anonymous]

You saw the ES44AC. The BNSF has 30 of 'em and they are numbered in the 5700's.Go to railpictures.net and look them up. Neat locomotives but why'd they have to paint them GREEN!!!!!!! ewww LONG LIVE THE ROCK!!!!!!!!!!!!!!!

[traingeek087]

I think they look good in the BNSF colors, although I liked the rock Island Blue and white. But the fresh paint keeps them locomotives looking good you know.

[Anonymous]

BNSF call the GEVO´s also AC4400 !!!

Courious but true !!!

[Anonymous]

I can't wait until the BNSF starts buying the (off topic) SD70ACe's.
[bow]BNSF RAILROAD[bow]

[M636C]

The ES44AC, which is what GE call them, has a different cooling arrangement compared to earlier AC4400 locomotives. The FDL engine used an intercooler cooled by water, which was in turn cooled by the radiator along with the engine cooling water. To improve efficiency, the Dash 9s had separate radiator elements for the intercooler, called "split cooling".

In The ES series, there is a new intercooler in which the air from the turbocharger is cooled in a separate radiator directly by outside air being drawn past the radiator, with no water involved. This radiator is placed in front of the usual engine radiator (and its fan), and has its own two fans for cooling. So in the ES44, there are two different radiators one in front of the other. This is why the radiator space looks larger. The fact that the new engine is V-12 rather than a V-16 allows more space for the radiators.

Peter