“Maine Central class C 4-6-2”的意思、由来-开放百科全书

词条

Maine Central class C 4-6-2

释义

Sub-classes
Sub-class C-3
Replacement
References

{{Infobox Locomotive
|name = Maine Central class C
|powertype = Steam
|image =
|caption =
|hatnote = Reference:^[1]
|builder = ALCO
|builddate = 1907–1924
|totalproduction = 21
|retiredate = 1954
|whytetype = 4-6-2
|uicclass = 2'C1'
|gauge = {{track gauge|ussg}}
|leadingdiameter = {{convert|33|in|mm|0|abbr=on}}
|driverdiameter = {{convert|73|in|mm|0|abbr=on}}
|trailingdiameter = {{convert|46|in|mm|0|abbr=on}}
|wheelbase = {{convert|33|ft|8|in|m|2|abbr=on}}
|length = {{convert|75|ft|0|in|m|2|abbr=on}} including tender
|width =
|height = {{convert|14|ft|7+1/4|in|m|2|abbr=on}}
|weightondrivers =
|locoweight = {{convert|228000|lb|t|1|abbr=in}}
|locotenderweight = {{convert|367000|lb|t|1|abbr=in}}
|fueltype = Coal
|fuelcap = 11 t
|watercap = {{convert|7000|USgal|m3|0|abbr=on}}
|boilerpressure = {{convert|200|lb/in2|kg/cm2|abbr=on}}
|firearea = {{convert|50|sqft|m2|2|abbr=on}}
|tubesandflues =
|fireboxarea =
|totalsurface =
|superheaterarea =
|cylindercount = Two
|cylindersize = {{convert|22|x|28|in|mm|0|abbr=on}}
|valvegear = Walschaerts
|tractiveeffort = {{convert|32000|lbf|kN|1|abbr=on}}
|factorofadhesion =
|preservedunits = 1
}}Maine Central Railroad Class C locomotives were intended for main line passenger service. They were of 4-6-2 wheel arrangement in the Whyte notation, or " 2'C1' " in UIC classification. They replaced earlier class N 4-6-0 locomotives beginning in 1907. Class C locomotives pulled named passenger trains until replacement by diesel locomotives after World War II.^[1]

Sub-classes

All were built in American Locomotive Company's plant at Schenectady, New York and were numbered from 450 to 470 as delivered. The original C class were builders numbers 42439 & 42440 delivered in 1907, 46036-42440 in 1909, 47731 in 1910, and 49205-49206 in 1911. Sub-class C-1 consisted of builders numbers 50940 & 50941 built in 1912, and 52985-52986 & 53291 completed in 1913. Builders numbers 54568 through 54570 arrived in 1914 as sub-class C-2 with weight increased to {{convert|238500|lb|t|1|abbr=in}}.^[2]

Sub-class C-3

The last five Maine Central Pacifics were built with booster engines. Increasing cylinder diameter to {{convert|24|in|mm}} increased tractive effort to {{convert|36500|lbf|kN|1|abbr=on}} or {{convert|46800|lbf|kN|1|abbr=on}} with the booster. Enlarged tenders held 13 tons of coal and {{convert|9100|USgal|m3|0|abbr=on}} of water. Builders numbers 57885 through 57887 were delivered in 1917 with weight increased to {{convert|268300|lb|t|1|abbr=in}}. Building of new 4-6-2s was interrupted by World War I when the United States Railroad Administration (USRA) authorized construction of non-standard Big O passenger locomotives">class O 4-6-0s because Maine Central Pacifics were so much smaller than USRA Light Pacifics. The final two class C engines were builders numbers 65554 and 65555 delivered in 1924.^[3] Number 470 was preserved in Waterville, Maine after pulling the last Maine Central steam-powered train on 13 June 1954.^[4]

Replacement

The last steam locomotives built for Maine Central were class D 4-6-4s numbered 701 and 702 from Baldwin Locomotive Works in 1930.^[1] The Budd Company Flying Yankee train set and unstreamlined {{convert|600|hp|kW}} oil-electric rail car number 901 arrived in 1935. EMD E7s numbered 705 through 711 began pulling main line passenger trains in 1946. Steam-generator-equipped road switchers pulled a declining number of branch line passenger trains from 1950 until Maine Central discontinued all passenger service in 1960.^[5]

References

1. ^¹²Robertson, Edwin B. Maine Central Steam Locomotives Edwin B. Robertson (1977) Westbrook, Maine pp.38-43&56
2. ^{{cite book| title=Maine Central R.R. Mountain Division |author=Johnson, Ron |publisher=470 Railroad Club |year=n.d.|page=323}}
3. ^{{cite book| title=American Locomotives |author=Alexander, Edwin P. |publisher=Bonanza Books |year=1950|page=136}}
4. ^{{cite book| title=The Best of Maine Railroads |author=Johnson, Ron |publisher=Portland Litho |year=1985 |isbn= |page=140}}
5. ^{{cite book| title=Maine Central Diesel Locomotives |author=Robertson, Edwin B. |publisher=Edwin B. Robertson |year=1978|pages=49,61&70–73}}

5 : 4-6-2 locomotives|ALCO locomotives|Maine Central Railroad locomotives|Railway locomotives introduced in 1907|Standard gauge locomotives of the United States

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