I saw that someone had brought this locomotive up in a previous proposal and I just want to say that I am totally behind adding this very unique but very flawed locomotive. it would also finally complete the quartet of twin-engined giants owned by the Union Pacific (C855, U50, DD35, DDA40X), with the C855 being the underdog due to it having many mechanical and electrical problems. the UP did not order any more after they took delivery of the demo set (A-units #60-61, and lone B-unit #60B) and they were scrapped in 1972. i think that adding this locomotive would offer a very unique experience on the UP system. It could also come with scenarios for the Wasatch Grade Route. Pictures of the C855's A-unit #60: A-unit #61: B-unit #60B: Thanks for reading!