What Diesel Generation are we in now?

Second Generation: ALCo C630, EMD SW1500, GE U30C, EMD GP30, GP35, SD45, GP39-2, GP40-2, and others.

I haven't heard any Third Generation or other "Generation" applied to diesels since then. I suppose they could be called "Modern" diesels. Rebuilt diesels are part of that, too, though there aren't as many being rebuilt now as there were when Second Generation diesels started showing their age.

Also first generation diesels included all models by Baldwin ( such as the VO 1000, Centipede, R16 Sharks, and other models ) and Fairbanks Morse( Trainmaster and other switchers )  ... perhaps these two manufactures produced a few second generation diesel era modelsas well? 

  "What Generation?" 

   I'd say we're in the 4th. 3rd started about the SD70 era with quieter, more powerful locos and the 4th is the higher efficiency Genset types. The 5th might someday be Tesla rail chargers :> ....DaveB 

I am making a presumption that we are in Generation 3, but towards the end. ES44AC, Dash-9, Dash-8, SD70ACe, SD70M and various other locos in operation today. In San Diego I only see BNSF running only ES44AC, and the SDIV run their Genset and there loaned GP-40s.

6

1st up through EMD GP20s  Baldwins and Alcos

2nd up through GP/SD40s  GE U-boats

3rd EMD Dash 2s  GE Dash 8s

4th GP/SD50-60s GE Dash 9s

5th SD70s  GE ACs

6th GE Tier 3 ACs no EMD available.

Millenium?

Current?

(Big smile all,  my funny for the morning)