Remarks: Knoxville Locomotive Works' first re-powered locomotive product, the KLW 20B, leads a westbound empty salt train through the S curves near milepost 8 on the KXHR's River Front Extension. This locomotive was built on the frame of NS/SOU GP38 2881 (former 'original' NS 2002) and features a fuel efficient, low emissions MTU prime mover. The trailing SW1500 and GP38AC were isolated here giving a good opportunity to hear the re-powered locomotive at work.