The new Broadway Limited Class D four-truck shay, which has been turning up in stores over the past week, is an intriguing model, although it isn't really a stereotypical Shay that you'd expect to see on logging railroads. The Broadway Limited artwork is below:
The Shay locomotive site is the best source on these locos. Only 20 Class D Shays were built, for a limited period between 1902 and 1913. Most were built for Class I railroads, which otherwise used very few Shays. On the other hand, most of these seem to have been sold off pretty quickly as unsatisfactory.
The first class D was a 100-ton loco built for the El Paso Rock Island Route as 105 in March 1902.
The name of this stretch of line changes frequently. It's first referred to as the Alamogordo & Sacramento Mountain in New Mexico, which became part of the El Paso & Northeastern, which in turn was absorbed by the El Paso & Southwestern. The A&SM was later known as the Cloudcroft Branch of the Southern Pacific. The best documentation of the loco's use is in a
National Park Service site:
The A&SM made the headlines when in 1902 it took delivery of the largest Shay geared drive locomotive built to date. Obviously an attempt to increase the overall capacity of the railroad, the locomotive was a magnificent machine weighing 291,000 pounds in working order (The Railroad Gazette 1902). The Shay locomotive was a patented design built by the Lima Locomotive & Machine Company of Lima, Ohio. The boiler, cab, and tender were carried on four center-bearing swivel trucks.
. . . Although it was not a long-term success, the big Shay made several spectacular trips over the A&SM. One trip saw it pulling 27 empty log cars of 16,000 pounds each plus a caboose weighing 12,000 pounds, a net weight of 222 tons, all the way to Cox Canyon. On another well recorded trip, the locomotive pulled 41 empty log cars and the caboose, net 334 tons, to Toboggan (Figure 40). This train was too long to traverse the switchbacks (The Railroad Gazette 1902). It is likely that trains of this length also proved to be unstable on the numerous sharp curves. The downfall of the Shay locomotive in main line service on the A&SM was its slow speed, coupled with high maintenance costs on the complex drive train. The difficulty of lubricating the gears and universals on a long run added to the problem. The big Shay did not find a permanent home on the A&SM and was sold in a few years (Homes 1965).
. . . Various attempts were made to find more powerful locomotives for the A&SM. In 1916, the EP&SW purchased another four-truck Shay. This one was even heavier than the 1902 example, weighing in at over 150 tons. It was over a year being rebuilt at the El Paso shops, while roadbed improvements were made along the A&SM. It wasn't until January 1918 that trial runs were made, and they turned out to be dismal failures. The enormous locomotive proved to be too cumbersome for the sharp curves, and it demanded unreasonable quantities of fuel and water. On its last trip, it failed to reach Cloudcroft on a single tank of fuel (Weekly Cloudcrofter 1917c).
This was totally unacceptable as a long-term proposition, and the big locomotive was sold in 1920 to the Red River Lumber Company in California. It worked there for many years (Howes 1965).
BLI has produced Class Ds lettered for the locos as El Paso Rock Island Route, El Paso & Southwestern, and Red River Lumber.
The next Class D built was Chesapeake & Ohio 6, builder number 1586 in 1906. This was the first of 15 Class Ds the C&O owned, which was 75% of the total production. These also lasted the longest of any with a Class 1 except for WM 5, being sold in 1923-24. They were apparently used on branches in the Thurmond, WV area, but the branches were rerouted about 1923 to eliminate the grades that required the Shays.
The next Class D was Western Maryland 900, ordered by the West Virginia Central & Pittsburg RY in 1906. Apparently Lima was selling Class Ds as suitable for certain types of main line service where the extra tender water capacity could offset the overall slow speed of a Shay by requiring fewer water stops. Apparently the WM thought the loco might work in main line pusher service, but the problem was that while it could push a train acceptably uphill, it was too slow returning back downhill, Like the A&SM loco, it was sold to Mexico.
The Carolina & Northwestern Class D was built in July 1907. Little else is known about it, and it passed through a number of owners before being sold to the Red River Lumber Co in California in 1920. BLI has amodel with this paint scheme. The photo shows it on Red River Lumber.
Southern Railway had two Class Ds built in September 1907, numbers 4000-4001. Little else is known about them. They were both sold to the C&O in 1911. BLI has models with this paint scheme.
The Norfolk & Western had one Class D numbered 56, later 156, built in August 1907. Little else is known about it. It was sold to Phelps Dodge Copper in 1917 and then to Red River Lumber in 1920. BLI has a model in rhe N&W scheme.
The loco that became Western Maryland 5 was built as C&O 11 in 1910. It was sold for scrap with the rest of C&O's Class Ds in 1923, but West Virginia Pulp & Paper bought it and put it in service as their #14. Western Maryland then bought it from WVP&P in 1930, and it lasted as #5 until being scrapped after 1950. BLI has a model painted for WM 5.
It should be noted that the BLI model isn't really suited for traditional Shay lumber style layouts, since it has a recommended radius of 18", which is greater than many modelers use with smaller geared locos. On the other hand, very littlr is known about the actual service in which many of these locos operated, so the proper prototype use of these models is anyone's guess.