BNSF Railway Co., the largest railroad in the U.S. and a subsidiary of Berkshire Hathaway, will begin testing liquefied natural gas (LNG) as a locomotive fuel. read the story :http://www.anga.us/blog/2013/5/16/a...giant-testing-natural-gas-powered-locomotives Wow, 50% saving over diesel fuels ....
Never heard of a GP9 being converted. But know for sure that 2 SD 40-2s were done. My Dad has a picture of at one of them at CEECO while being built. I want to say it was #### 7891, but not sure about that.
it'd be a pretty awesome modeling project, get a shapeway made trailer, I have a spare 40' flat I could use a GP9 and a good building roject.