Introduction of Diesel Locomotive

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No. Quantity Manufactory Year Weight (t) Note
11403-1
11403-2
2 Mitsubishi Heavy Industries 1953 25 Retired
11403-3
11403-5
2 Mitsubishi Heavy Industries 1954
1955
25 Retired
DL25-30 6 Mitsubishi Heavy Industries 1969 25 Serving
DL31-34 4 Mitsubishi Heavy Industries 1972 25 Serving
DL35-37 3 Orenstein & Koppel 1976
1977
25 Retired
DL38 1 Nippon Sharyo 1980 25 Serving
DL39-DL43 5 Nippon Sharyo 1982 28 Serving
DL45-51 7 Nippon Sharyo 2006-2007 28 Serving

First generation of diesel locomotives

In 1953, the 11403-1 and 1403-2 diesel locomotives were imported from Japan. Because no other railway organizations used diesel locomotives at that time and no experience can be gained, the imported locomotives were not suitable for the mountainous terrain of the forest railway. They were only used for pulling train or shunting on the level ground section between Chiayi Station and Zhuqi Station.
 
First generation of diesel locomotives

Second generation of diesel locomotives

In 1954 and 1955, two 25-metric ton diesel locomotives (11403-3 and 11403-5) were purchased again from Japan. However, due to the limited horsepower of this type of locomotives, the two locomotives had not been used until 1962 when they began to pull express train between Chiayi Station and Fenqihu Station. However, they were mainly used for transportation and shunting on level ground sections. The "Zhongxing Diesel Passenger Car" was a kind of diesel powered car that can be driven on the track with a single unit or multiple units. The car can reach a speed of 35 km/h while running up Alisan and can travel at speeds of 55 km/h on level ground section. Originally, it took more than 7 hours to travel from Chiayi Station to Alishan Station before the inauguration of Zhongxing Diesel Passenger Car, which only took 3 hours and forty minutes to travel from Chiayi Station to Alishan Station, setting a record at that time and warmly received by many passengers.
 
Second generation of diesel locomotives

Third generation of diesel locomotives

In 1969, six 25-ton diesel locomotives, the DL25-30, were purchased. The diesel locomotives' engines have improved horsepower and adopted the car frame center transmission, so they have functioned well and now pull trains on the Zhushan line and the Shenmu line.
 
Third generation of diesel locomotives

Fourth generation of diesel locomotives

Owing to the dieselization of locomotive the speed of the locomotives have increased drastically, the import of Zhongxing Diesel Passenger Car has been stopped, and diesel locomotives have been purchased from Mitsubishi. In 1972, four DL31-34 locomotives were purchased to pull the new passenger cars and the train was named "Guanfu" train.
 
Fourth generation of diesel locomotives

Fifth generation of diesel locomotives

After breaking diplomatic relations with Japan in 1972, in Japanese goods were boycotted under the pressure of public sentiment. In 1975, three locomotives were purchased from West Germany Q&K Company. However, due to the precision of the machine members and the scarcity of parts, the locomotives were difficult to maintain. In addition, they were different from Japanese locomotives in terms of maintenance and operation. So, they have been discontinued.
 
Fifth generation of diesel locomotives

Sixth generation of diesel locomotives

Due to the impact of the completion of Alishan highway in 1981, the ridership of Alishan forest railway decreased sharply. To compete with highway passenger transportation, five 28-metric ton DL39-43 diesel locomotives were purchased in 1982. Since 1984, the Alishan Train with air conditioning has been officially operated.
 
Sixth generation of diesel locomotives

Seventh generation of diesel locomotives

To meet the operational needs, Chiayi Forest District Office ordered 7 new diesel locomotives from the Nippon Sharyo, Ltd. in December 2004. They began to entered service in 2006 and 2007 in succession.

 

【Data source:Brief History of Alishan Forest Railway Through the Century ,BY Su, Chao-Hsu】

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