its first diesel locomotive in June 1948, a General Electric 65-ton locomotive. Over the next two years the railway acquired six GE 70-ton locomotives. In the 1950s, the railway bought RS-3, RS-10, and RS-18 locomotives from the Montreal Locomotive Works (MLW). The railway had fully dieselized by 1956, and by the end of the decade had nearly 40 diesel locomotives. The railway would purchase new locomotives exclusively from MLW until 1980. During the 1970s, the railway also purchased several used locomotives, mostly American Locomotive Company (Alco) models from American railways. In the 1980s, the railway acquired new SD40-2 locomotives made by General Motors Diesel, and used SD40–2s made by General Motors Electro-Motive Division (EMD). In the 1990s and early 2000s, a number of locomotives were purchased from General Electric. Purchased new from GE were 26 (4601-4626) C40-8Ms, 4 C44-9WLs and 10 C44-9Ws. Older, secondhand GE locomotives in the form of B36-7s, C36-7MEs, and B39-8Es were also purchased. In 1970, the railway started using remote controlled mid-train locomotives, allowing longer and heavier trains to be operated through the steep grades of the Coast Mountains. It initially used separate remote control cars to control the mid-train locomotives, but in 1975 it received eight M-420B locomotives from MLW. These locomotives were specially designed for mid-train operation. They contained remote control stations, and were cabless. The railway also leased seven GF6C electric locomotives made by GMD for use on the electrified Tumbler Ridge Subdivision from 1983 until electrification was removed in 2000. In 2004, the Paul D. Roy family purchased engine 6001 and they donated it to the British Columbia Railway & Forest Industry Museum in Prince George; the remaining six were scrapped. For passenger service, the PGE purchased seven Budd Rail Diesel Cars in 1956. Starting in the 1970s, the BCR started to purchase some used RDCs. The RDCs were retired in 2002, when BC Rail ended its passenger services. The BCR also used some historic locomotives for its Royal Hudson excursion service. The primary steam locomotive for the Royal Hudson excursion train was Canadian Pacific Railway No. 2860, a class H1 4-6-4 Royal Hudson. Made by MLW for the Canadian Pacific Railway in June 1940, it was the first locomotive built as a Royal Hudson. A sister locomotive, No. 2850, pulled King George VI's and Queen Elizabeth's royal train in 1939. After the tour, the King gave the CPR permission to use