Boeing 737-700 —

"The Plane Train!!"

Nice, not an often captured image, shows the work involve in getting aircraft built.

Awesome shot! I am also a railfan and it is awesome to see these trains that carry the 737s! BNSF is contracted with Boeing to carry 737NGW parts to Seattle. They are typically carried just behind the locomotives (BNSF 5495 is a C44-9W, and the second one is an ES44AC) to keep allow the crew to keep a close eye on the high-value load. I hope this info helps, and I would love to see more of these!