Since I don't get out much these days to railfan...spotting most of the newer locomotives...say from 1985 on.... is difficult for me...so is this a GEVO or a TiVO?? oh...btw...this is a train awaiting its crew at Mojave, Ca ...May of this year.
Mike, it's one of Uncle Pete's monster-MACs, the SD90MAC (or MAC-H) The 6,000 HP vversion. The 8500-series number gives that away.
GEVO stands for GE EVOlution series. This is the name of their newer, cleaner burning prime mover. You find them in SD70ACe's (yes, a repowered EMD unit! The "E" stands for enhaced version of the SD70AC), repowered AC4400's and the like. I believe that there are certain tell tale characteristics with the fans and "wings" that allows one to distinguish a GEVO unit. I know that the wings on an SD70ACe are thicker than those on the plain old SD70AC. The GEVO prome mover is to make locomotives tier 2 compliant or, in laymans terms, run cleaner. Russ
I thought the SD70ACe was using a 16 cylinder, EPA Tier-2 compliant, EMD 16-710G3C-T2 diesel engine. The GE prime mover is 12 cylinder.
Yeah, EMDs don't use GEVOs at all. They are in the GE ES4xDC and ES4xAC Engines. GM has a Tier 2 complient version of the 710 also, I believe the H-Engine is tier 2. Other dead giveaways on that engine are the angled roofline above the UNION lettering and the newer style safety cab. It looks like both of those are H-Macs in Hemi's pic.
here is another H-MAC. This particular unit is earlier in the series and has the older style EMD safety cab. It shows the long hood in better detail.
Thanks for the correction YoHo. I always get my GE's and EMD's mixed up. We don't get many modern locos around my neck of the woods! Russ
