Railroads commonly relied on drag freights with engines that could pull heavy tonnage, but at low speeds. Following experiments with existing designs, Lima Locomotive Works developed a new wheel arrangement, the 2-8-4, to accommodate an increase in the size of the locomotive's firebox. An increase in the firebox size allowed more coal combustion and subsequent heat output, improving the amount of steam developed and increasing horsepower. These and other modifications created the concept of "horsepower at speed." The NKP 765 is a
steam locomotive built for the Nickel Plate Road in 1944 by the
Lima Locomotive Works. Classified as an "S-2"
Berkshire-type steam locomotive, the locomotive is based on a 2-8-4 wheel arrangement. It operated freight and passenger trains until retirement in 1963. The Berkshire locomotives earned their name from the Berkshire Mountains in Southwest Massachusetts. The Berkshire class of locomotives was not the heaviest, fastest, or most powerful, but was a popular all-around type intended for fast freight service. It survived in regular use until 1958, between Chicago, Fort Wayne, Cleveland, and Buffalo. The Nickel Plate was one of the last Class I railroads to regularly use steam locomotives, only the
Illinois Central,
Norfolk & Western,
Colorado & Southern,
Fort Worth & Denver, and
Grand Trunk Western were to continue longer, until spring 1960. The Nickel Plate Road had a fleet of 112 of the 2-8-4 Berkshire type steam locomotives. After retirement, most obsolete locomotives were cut up for scrap and melted down. A total of six were saved by various means. Five survivors were from the second batch of the S-2 Class, 755-769, which were built at the height of World War II in summer and fall 1944. The sixth survivor was from the S-3 Class, 770-779, built in spring 1949. The 779 was requested to be saved because it was the last steam locomotive of any type built by the Lima Locomotive Works, Lima, Ohio, the third largest commercial builder of steam locomotives in the United States. The 765 was on display from 1963 to 1974 This rebuild included adding an
MU stand and
in-cab signalling to allow the crew to know what the
line-side signal aspect says before it comes into view. On average, the locomotive experiences 3,000 visitors a day when operating, with visitor and passenger numbers running between 40,000 and 60,000 ticket buyers in 2009 and 2011 in less than 30 days, respectively. Typical passenger trains carry anywhere from 600 to 1,000 people at a time with tickets for many trips selling out in 24 hours. Press reports indicate the continuous presence of large crowds of "locals and out of towners" and on 765's ability to boost tourism in the towns that it travels through. In 2012, the Pittsburgh Tribune's headline photo proclaimed that the 765 was the "engine that still can" with CBS Pittsburgh describing it as "400 tons of Americana". When not operating excursions, 765 is maintained in a restoration shop in New Haven and maintained by a crew of 70-100 volunteers throughout the year. The shop is open to the public and houses a variety of other railroad equipment including vintage steam and diesel locomotives, passenger cars, cabooses, and more. == Future plans ==