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{{Short description|Diesel-electric locomotive}}{{no footnotes|date=February 2015}}
{{Infobox Locomotive|
{{Infobox locomotive
name=FM H-20-44|
| name = FM H-20-44
powertype=Diesel-electric|
| powertype = Diesel-electric
gauge={{RailGauge|sg}}|
image=Union Pacific -1366.jpg|
| image = Union Pacific -1366.jpg
caption=An FM H-20-44 road switcher, retired Union Pacific #1366.|
| caption = An FM H-20-44 locomotive, retired Union Pacific #1366
| builder = [[Fairbanks-Morse]]
aarwheels=B-B|
| buildmodel = H-20-44
cylindercount=10 ([[Opposed piston]])|
| builddate = June 1947 — March 1954
primemover=[[FM 38D-10]]|
| totalproduction = 96
builddate=June 1947 &mdash;<br> March 1954|
| aarwheels = B-B
totalproduction=299|
| uicclass = B′B′
locale=[[North America]]|
| gauge = {{track gauge|sg}}
poweroutput=2,000&nbsp;[[horsepower|hp]] (1,492&nbsp;kW)|
| length = {{convert|51|ft|0|in|m|2|abbr=on}}
topspeed=70 &nbsp;[[miles per hour|mph]] (113&nbsp;[[kilometer per hour|km/h]])|
| locoweight = {{convert|254000|lb|t|1|abbr=in}}
weight=254,000&nbsp;[[pound (mass)|lb]] (115,000&nbsp;[[kilogram|kg]])|
| primemover = [[Fairbanks Morse 38 8-1/8 diesel engine|FM 38D-8 1/8]]
tractiveeffort=42,125&nbsp;lbf (187&nbsp;kN)|
| enginetype = [[Two-stroke engine|Two-stroke]] diesel
length=51&nbsp;ft 0&nbsp;in (15.55&nbsp;m)|
| aspiration = [[Roots blower]]
enginetype=2-stroke diesel|
| displacement = {{convert|10369|cuin|abbr=on}}
aspiration=[[Roots blower]]|
| cylindercount = 10 ([[Opposed piston]])
cylindersize=8.125&nbsp;in × 10&nbsp;in<br>(206&nbsp;mm × 254&nbsp;mm)|
| cylindersize = {{convert|8.125|x|10|in|mm|0|abbr=on}}
displacement=5,180&nbsp;in³ (84.9&nbsp;L)|
transmission=DC generator,<br> DC traction motors|
| transmission = DC generator,<br> DC traction motors
| maxspeed = {{convert|70|mph|km/h|0|abbr=on}}
locobrakes=Straight air|
| poweroutput = {{convert|2000|hp|MW|2|abbr=on}}
trainbrakes=Air|
| tractiveeffort = {{convert|42125|lbf|kN|2|abbr=on}}
buildmodel=H-20-44|
| locobrakes = Straight air
| trainbrakes = Air
| locale = [[North America]]
| disposition = Three preserved, remainder scrapped
}}
}}
[[File:Galveston Railroad Museum March 2022 15 (Union Pacific Railroad FM H-20-44 No. 410).jpg|thumb|Union Pacific FM H-20-44 No. 410 at the [[Galveston Railroad Museum]]]]


The '''FM H-20-44''' was an [[multiple unit]]-capable end cab [[road switcher]] manufactured by [[Fairbanks-Morse]] from June, 1947&ndash;March, 1954, and represented the company's first foray into the road switcher market. The 2,000 hp, ten-cylinder [[opposed piston engine]] locomotive was referred to by F-M's engineering department as the "Heavy Duty" unit. It was configured in a [[AAR wheel arrangement#B-B|B-B]] wheel arrangement mounted atop a pair of two-axle [[Association of American Railroads|AAR]] Type-B road [[bogie|trucks]] with all axles powered. H-20-44s shared the same platform and much of the same carbody as the lighter-duty [[FM H-15-44]], which began its production run three months later.
The '''FM H-20-44''' was a [[diesel locomotive]] manufactured by [[Fairbanks-Morse]] from June 1947 &ndash; March 1954. It represented the company's first foray into the road switcher market. The {{convert|2000|hp|kW|-1|abbr=on}}, ten-cylinder [[opposed piston engine]] locomotive was referred to by F-M's engineering department as the "Heavy Duty" unit. It was configured in a [[AAR wheel arrangement#B-B|B-B]] wheel arrangement mounted atop a pair of two-axle [[Association of American Railroads|AAR]] Type-B road [[bogie|trucks]] with all axles powered. H-20-44s shared the same platform and much of the same carbody as the lighter-duty [[FM H-15-44]], which began its production run three months later.


In the same manner as other F-M switcher models, the H-20-44 started out displaying a variety of [[Raymond Loewy]]-inspired contours, only to have the majority of these superfluous trim features stripped from the last few units built as a cost-cutting measure. Only 97 units were built for [[United States|American]] railroads, as few firms saw sufficient value in moving freight in greater quantities or at a higher speeds than was possible with the typical 1,500- and 1,600-horsepower four-axle road switchers of the era. Three intact examples of the H-20-44 are known to survive today; all are the property of railroad museums.
In the same manner as other F-M switcher models, the H-20-44 started out displaying a variety of [[Raymond Loewy]]-inspired contours, only to have the majority of these superfluous trim features stripped from the last few units built as a cost-cutting measure. Only 96 units were built for [[United States|American]] railroads, as few firms saw sufficient value in moving freight in greater quantities or at a higher speeds than was possible with the typical 1,500 and {{convert|1600|hp}} four-axle road switchers of the era. Also limiting the model's utility as a true road unit was its lack of a short hood, which the (ironically) lighter-duty H-15-44 did have. Three intact examples of the H-20-44 are known to survive today; all are preserved at railroad museums. These were former Southwest Portland Cement units donated in the early 1980s.

<br style="clear:both;">
A six axle version for better traction was catalogued, but no orders were placed, and no demos were built.


==Units produced==
==Units produced==
{| class="toccolours"
{| class="wikitable"
! Railroad !! Quantity !! Road numbers !! Notes
! bgcolor=#cc9966 | Railroad
|-align="center"
! bgcolor=#cc9966 | &nbsp; Quantity &nbsp;
|[[Akron, Canton and Youngstown Railroad]] || 6 || 500–505 || 500 sold to Southwest Portland Cement in the 1960s. Donated to the [[Galveston Railroad Museum]] in 1984 and repainted as "[[Union Pacific Railroad|Union Pacific]] 410"<ref>{{cite web |title=Locomotives – Galveston Railroad Museum |url=https://galvestonrrmuseum.org/locomotives/ |website=Galveston Railroad Museum |access-date=10 November 2023}}</ref><ref>{{cite web |title=Surviving & Preserved Fairbanks-Morse Locomotives |url=https://www.thedieselshop.us/PRSVDfm.HTML |website=www.thedieselshop.us |access-date=10 November 2023}}</ref>
! bgcolor=#cc9966 | Road numbers
|-align="center"
|-
|style="width:300px"|[[Akron, Canton and Youngstown Railroad]]
|<center>6
|style="width:350px"|500&ndash;505
|-
|[[Fairbanks-Morse]] (demonstrator units)
|[[Fairbanks-Morse]] (demonstrator units)
| 1 || 2000 || Serial number #L1032; sold to the [[Union Pacific Railroad|UP]] later in 1947 and assigned #DS1366. Sold to Southwest Portland Cement in 1963 and renumbered 409. Donated to the [[Illinois Railway Museum]] in 1984. Still in SWPC paint.<ref>{{cite web |title=Union Pacific 1366 |url=https://www.irm.org/player/up1366/?roster_type=custom |website=Illinois Railway Museum |access-date=10 November 2023}}</ref>
|<center>2
|-align="center"
|2000 (Builder's #L1031), 2000 (Builder's #L1032);<br> (Builder's #L1032 sold to the [[Union Pacific Railroad|UP]] and assigned #DS1366)
|[[New York Central Railroad]] || 19 || 7100–7118 ||
|-
|-align="center"
|[[New York Central Railroad]]
|[[Pennsylvania Railroad]] || 38 || 8917–8942, 9300–9311 || #8931 and #8939 to [[Penn Central Transportation Company|Penn Central]] #7731 and #7739 in 1968, retired August 1970
|<center>19
|-align="center"
|7100&ndash;7118
|[[Pittsburgh and West Virginia Railway]] || 22 || 50–71 ||
|-
|-align="center"
|[[Pennsylvania Railroad]]
|[[Union Pacific Railroad]] || 10 || DS1360–DS1365,<br>DS1367–DS1370 || DS 1369 sold to Southwest Portland Cement in 1962 and renumbered 69. Donated to the [[Pacific Southwest Railway Museum]] in 1984. Repainted back to UP colors in 1998.<ref>{{cite web |title=Union Pacific #1369 |url=https://www.psrm.org/trains/diesel/union-pacific-1369/ |website=Pacific Southwest Railway Museum |access-date=10 November 2023}}</ref>
|<center>38
|8917&ndash;8942, 9300&ndash;9311
|-
|[[Pittsburgh and West Virginia]]
|<center>22
|50&ndash;71
|-
|[[Union Pacific]]
|<center>10
|DS1360&ndash;DS1365, DS1367&ndash;DS1370
|-
|-
! !! 96 !! !!
|}
|}


==References==
==References==
* {{cite web|title=Fairbanks-Morse 38D8 Diesel Engine|work=PSRM Diesel Locomotives|url=http://www.psrm.org/roster/diesel/fm/index.html|accessdate=January 1|accessyear=2006}}
* {{cite web|title=Fairbanks-Morse 38D8 Diesel Engine |work=PSRM Diesel Locomotives |url=http://www.psrm.org/roster/diesel/fm/index.html |accessdate=January 1, 2006 |url-status=dead |archiveurl=https://web.archive.org/web/20060526222933/http://www.psrm.org/roster/diesel/fm/index.html |archivedate=May 26, 2006 }}
* {{Pinkepank diesel spotters guide 2}}
* {{Pinkepank diesel spotters guide 2}}
* {{cite book
| last = Kirkland
| first = John F.
| title = The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton
|date=November 1985
| publisher = Interurban Press
| isbn = 0-916374-69-6
}}


==Further reading==
==Further reading==
* {{cite book|author=Sweetland, David R.|year=1999|title=Erie-builts and H20-44s: Fairbanks-Morse’s 2,000-Horsepower Pioneers|publisher=Withers Publishing, Halifax, PA|isbn=1-881411-22-2}}
* {{cite book|author=Sweetland, David R.|year=1999|title=Erie-builts and H20-44s: Fairbanks-Morse's 2,000-Horsepower Pioneers|publisher=Withers Publishing, Halifax, PA|isbn=1-881411-22-2}}

==See also==
* [[List of Fairbanks-Morse locomotives]]


==External links==
==External links==
{{reflist}}
* [http://www.thedieselshop.us/FM_H2044.HTML Fairbanks-Morse H20-44 Roster]
* [http://www.thedieselshop.us/FM_H2044.HTML Fairbanks-Morse H20-44 Roster]
* [http://www.thedieselshop.us/PRSVDfm.HTML#Four Preserved Fairbanks Morse Four-Axle Road Switchers]
* [http://www.thedieselshop.us/PRSVDfm.HTML#Four Preserved Fairbanks Morse Four-Axle Road Switchers]
* [http://www.psrm.org/roster/diesel/d-up1366/index.html Union Pacific #1366] &mdash; photo and short history of the second unit built, one of the three surviving FM H-20-44s.
* [https://www.psrm.org/trains/diesel/union-pacific-1369/ PSRMA's History of UP 1369] &mdash; photo and short history of the second unit built, one of the three surviving FM H-20-44s.
{{Fairbanks-Morse}}

{{FM diesels}}
{{FM diesels}}


[[Category:B-B locomotives]]
[[Category:B-B locomotives]]
[[Category:Fairbanks-Morse locomotives|H-20-44]]
[[Category:Fairbanks-Morse locomotives|H-20-44]]
[[Category:Diesel-electric locomotives of the United States]]
[[Category:Railway locomotives introduced in 1947]]
[[Category:Standard gauge locomotives of the United States]]

Revision as of 10:28, 5 May 2024

FM H-20-44
An FM H-20-44 locomotive, retired Union Pacific #1366
Type and origin
Power typeDiesel-electric
BuilderFairbanks-Morse
ModelH-20-44
Build dateJune 1947 — March 1954
Total produced96
Specifications
Configuration:
​
 • AARB-B
 • UICB′B′
Gauge1,435 mm (4 ft 8+1⁄2 in)
Length51 ft 0 in (15.54 m)
Loco weight254,000 lb (115.2 tonnes)
Prime moverFM 38D-8 1/8
Engine typeTwo-stroke diesel
AspirationRoots blower
Displacement10,369 cu in (169,920 cm3)
Cylinders10 (Opposed piston)
Cylinder size8.125 in × 10 in (206 mm × 254 mm)
TransmissionDC generator,
DC traction motors
Loco brakeStraight air
Train brakesAir
Performance figures
Maximum speed70 mph (113 km/h)
Power output2,000 hp (1.49 MW)
Tractive effort42,125 lbf (187.38 kN)
Career
LocaleNorth America
DispositionThree preserved, remainder scrapped
Union Pacific FM H-20-44 No. 410 at the Galveston Railroad Museum

The FM H-20-44 was a diesel locomotive manufactured by Fairbanks-Morse from June 1947 – March 1954. It represented the company's first foray into the road switcher market. The 2,000 hp (1,490 kW), ten-cylinder opposed piston engine locomotive was referred to by F-M's engineering department as the "Heavy Duty" unit. It was configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type-B road trucks with all axles powered. H-20-44s shared the same platform and much of the same carbody as the lighter-duty FM H-15-44, which began its production run three months later.

In the same manner as other F-M switcher models, the H-20-44 started out displaying a variety of Raymond Loewy-inspired contours, only to have the majority of these superfluous trim features stripped from the last few units built as a cost-cutting measure. Only 96 units were built for American railroads, as few firms saw sufficient value in moving freight in greater quantities or at a higher speeds than was possible with the typical 1,500 and 1,600 horsepower (1,200 kW) four-axle road switchers of the era. Also limiting the model's utility as a true road unit was its lack of a short hood, which the (ironically) lighter-duty H-15-44 did have. Three intact examples of the H-20-44 are known to survive today; all are preserved at railroad museums. These were former Southwest Portland Cement units donated in the early 1980s.

A six axle version for better traction was catalogued, but no orders were placed, and no demos were built.

Units produced

Railroad Quantity Road numbers Notes
Akron, Canton and Youngstown Railroad 6 500–505 500 sold to Southwest Portland Cement in the 1960s. Donated to the Galveston Railroad Museum in 1984 and repainted as "Union Pacific 410"[1][2]
Fairbanks-Morse (demonstrator units) 1 2000 Serial number #L1032; sold to the UP later in 1947 and assigned #DS1366. Sold to Southwest Portland Cement in 1963 and renumbered 409. Donated to the Illinois Railway Museum in 1984. Still in SWPC paint.[3]
New York Central Railroad 19 7100–7118
Pennsylvania Railroad 38 8917–8942, 9300–9311 #8931 and #8939 to Penn Central #7731 and #7739 in 1968, retired August 1970
Pittsburgh and West Virginia Railway 22 50–71
Union Pacific Railroad 10 DS1360–DS1365,
DS1367–DS1370		 DS 1369 sold to Southwest Portland Cement in 1962 and renumbered 69. Donated to the Pacific Southwest Railway Museum in 1984. Repainted back to UP colors in 1998.[4]
96

References

  • "Fairbanks-Morse 38D8 Diesel Engine". PSRM Diesel Locomotives. Archived from the original on May 26, 2006. Retrieved January 1, 2006.
  • Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
  • Kirkland, John F. (November 1985). The Diesel Builders Volume 1: Fairbanks-Morse and Lima-Hamilton. Interurban Press. ISBN 0-916374-69-6.

Further reading

  • Sweetland, David R. (1999). Erie-builts and H20-44s: Fairbanks-Morse's 2,000-Horsepower Pioneers. Withers Publishing, Halifax, PA. ISBN 1-881411-22-2.
  1. ^ "Locomotives – Galveston Railroad Museum". Galveston Railroad Museum. Retrieved 10 November 2023.
  2. ^ "Surviving & Preserved Fairbanks-Morse Locomotives". www.thedieselshop.us. Retrieved 10 November 2023.
  3. ^ "Union Pacific 1366". Illinois Railway Museum. Retrieved 10 November 2023.
  4. ^ "Union Pacific #1369". Pacific Southwest Railway Museum. Retrieved 10 November 2023.
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