I took a friend of mine out railfanning in the KC area once, as he lives in Leavenworth, KS. His and my inherent interest in firefighting also translates into trains, and thus he tagged along. Apparently, his ears are better than mine, as he heard this manifest a ways off before I even realized it.
This guy was smokin' fast. No sooner than I heard the horns from a distance, he'd rounded the turn just down the track and was movin' straight at me. And he had it all the way in Run 8.
BNSF C44-9W #4163 roars through the crossover and down Main #1 from Main #2, with another C44-9W and a manifest on the BNSF transcon, Emporia Sub, Shawnee, KS.
Canon EOS 30D
Canon EF 70-200mm f/4 L USM
ISO 100 @ 1/500, f/6.3