NS 4001 serves as a rear DPU for NS 741. After just coming out of the Catawba plant, it's seen here crossing the Catawba river before heading to Linwood for a crew change.

On a cold January night, NS 29G rumbles west through Christiansburg, Va by the Cambria Depot with the 4001 in the lead.

NS i34 heads east through Rich Creek, Va on the Christiansburg district with the blue 4001 in charge.

Extra NS 234, NS i34, rolls east through Hardy, Wv with 4001 on point.

With only a few miles to go for its destination Norfolk Va. to Louisville Ky. intermodal 22A is lead by one of the blue units.

NS 4001 leads 217 over a small trestle that crosses Elkhorn Creek just outside downtown Kimball, WV on a snowy morning.

Blue Train: NS 62V arrives on the "slow track" (Track 1) at Manville to work BRI in Bridgewater with the 2nd AC44C6M rebuild leading. NS 8115 (ES44AC) is trailing. The leader was rebuilt fr... (more)

The NS 4001 and NS 4000 "DC to AC" units lead the NS 756 south at Rocky Mount to Belews Creek Steam Station. The Winston-Salem District was used extensively by NS to test these Conversio... (more)

NS 217 heads west along the Pocahontas Division with NS 4001 on point as it crosses a small bridge over Elkhorn Creek in the late morning hours.

Train 63V passes the Cassandra Railroad Overlook as it runs down the West Slope on the Pittsburgh Line. In the lead is one of the first DC to AC conversion units, 4001, which sports a distinctive... (more)

NS 4001 leads 62V east through New Market.

NS 4001 made several round trips to New Jersey on 62V/63V between February and March. On this day the light was more favorable as 62V rolls through the curves at New Market on the Lehigh Line.

NS 282 begins to accelerate out of Jenkinsburg after letting 372 take the siding. Leading is Sonic Bonnet 4001, one of the first two DC-to-AC conversions that NS completed to extend the life of th... (more)

NS 282 begins to slow down after taking an approach signal at Bunch to meet 372 at Jenkinsburg. Leading is Sonic Bonnet 4001, one of the first two DC-to-AC conversions that NS completed to extend ... (more)