Locomotive power

From the Railroad Museum of Pennsylvania in Strasburg, Pennsylvania.  

Technical Details:
Nikon F4S 35mm film camera.  Nikon 35-105mm F3.5-4.5 AIS lens.
Ilford HP5+ 400 ISO B&W film shot at ISO 800.
F8 in aperture priority mode.  
Developed in Diafine for 4 minutes (part A) and 4 minutes (part B) @ 20 degrees Celsius in Paterson 3 reel tank.  5 seconds initial agitation with swizzle stick followed by 5 seconds of additional agitation every minute thereafter. 
Negative scanned with Epson 4990 on holders with ANR glass.