I think you meant to post this in the Trains Magazine Locomotive forum - about a dozen fora below this.
This forum is a place to discuss site maintenance issues.
Chuck
From what I read about the newer units, they are still 4400 HP but this designation was used to identify them from the older AC 4400 units with the (12Cylinder) different motor. ?The CCTE If I remember correctly it is "Computer Controlled Tractive Effort "software on board. Go Figure!
CZ