New Haven class 144, later B-4

Numbers 144 to 149 of the New Haven were six 4-4-0 express locomotives built by Baldwin in 1887. With a service weight of 112,000 pounds, they were heavier than most American 4-4-0 locomotives built a few years earlier. Allegedly, they were designed after specifications given by the New Haven whose proportions were not quite right. Angus Sinclair wrote that many parts were built too massive and that the cylinder dimensions were off. As the impression on the photo suggests, they had a too short stroke of only 22 inches, while their diameter was too large at 20 inches. Actually, they got new cylinders with a stroke of 24 inches and a diameter of 19 inches in 1900. By this time, they had become class B-4. All were retired between 1925 and 1927.