These locomotives were originally conceived as an enlargement of the earlier class P (later reclassified D14) and … 展开

Seventy-three of the high-drivered D16a subclass were built between 1895 and 1898, and six of class D16 in 1896. A slightly revised low-drivered subclass D16b was constructed to the tune of 262 examples betwe… 展开

In 1914, the PRR experimentally rebuilt D16b #178 in the Altoona Shops, giving it a superheater for greater power and efficiency. This necessitated replacing the slide-valve equipped cylinders, the lubrication of whi… 展开

Even by the early 1900s the 4-4-0 type was becoming eclipsed by larger types such as 4-4-2 "Atlantics" in top-flight service, and the D16 locomotives became stalwarts on more pedestrian services; slower trains, locals, branch line servi… 展开

The last of the PRR's American types were found on the branch lines of the Delmarva Division, on the Delmarva Peninsula, encompassing parts of the U.S. states of Maryland, Delaware and Virginia. Three locomotives wer… 展开