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12/17/2025
 
 
 
 
 
Owner: Pennsylvania Railroad
Model:Alco RSD12Built As:PRR 8674 (RSD12)
Serial Number:82076Order No:21083
Frame Number:prime mover # 14647Built:3/1958
Notes:PRR Class AS-18AM.
Other locos with this serial:  NS 970(MT6) NS 860(MT6) NS 1100(MT6) CR 1100(MT6) PRR 8674(RSD12)
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PRR 8671, AS-18AM, 1959
Title:  PRR 8671, AS-18AM, 1959
Description:  Muleshoe. Here is a photo by William D. Volkmer that was taken at the Muleshoe Curve on the New Portage Branch Line west of Duncansville, Pennsylvania, on 29 October 1959. It was published originally in his 2019 book entitled "Pennsylvania Railroad-Best Of Bill Volkmer: Volume 3-Altoona," page 81. Shown here (L to R) are PRR engines #8671, #8674, and #8677. All are AS-18AM's built by the American Locomotive Company in March of 1958 and rated at 1,800 horsepower each. They are pushing an iron-ore train up the Allegheny Mountains to Gallitzin, where they will uncouple and return to East Altoona for yet another run up "The Mountain."
Photo Date:  10/29/1959  Upload Date: 1/12/2020 2:10:14 AM
Location:  Duncansville, PA
Author:  Thomas C. Ayers
Categories: 
Locomotives:  PRR 8671(RSD12) PRR 8674(RSD12) PRR 8677(RSD12)
Views:  1578   Comments: 1
PRR 8671, AS-18AM, 1960
Title:  PRR 8671, AS-18AM, 1960
Description:  Sweetland. Here is duplicate 35mm color slide of a photo by David R. Sweetland that was taken near Gallitzin, Pennsylvania, in October of 1960. Shown here (R to L) are Pennsylvania Railroad engines #8671, #8674, and #8663. All are AS-18AM's built by the American Locomotive Company during 1958 and rated at 1,800 horsepower each. In this context, they're serving as tail end pushers for a westbound mixed-cargo freight train that is already passing through the Allegheny Tunnel. In a matter of minutes, though, they'll be uncoupled and returned to East Altoona for further assignment. In the left foreground is the link to the westbound New Portage Secondary Track. In the left foreground is the link to the westbound New Portage Secondary Track.
Photo Date:  10/1/1960  Upload Date: 4/6/2018 2:59:06 AM
Location:  Gallitzin, PA
Author:  Thomas C. Ayers
Categories:  Tunnel,Track
Locomotives:  PRR 8671(RSD12) PRR 8674(RSD12) PRR 8663(RSD12)
Views:  1817   Comments: 0
PRR 8674, AS-18AM, 1963
Title:  PRR 8674, AS-18AM, 1963
Description:  AHC. Here is a duplicate 35mm color slide via Al Chione that was taken at the Horseshoe Curve near Altoona, Pennsylvania, in September of 1963. The photographer is not identified. Shown here (L to R) are Pennsylvania Railroad engines #8674 and #8675. Both are AS-18AM road switchers built by the American Locomotive Company in March of 1958 and rated at 1,800 horsepower each. In this context, they're pushing a freight train on its way up the Allegheny Mountains to Gallitzin, where they'll uncouple and return to East Altoona for yet another helper/pusher run up "The Mountain." ("PrrFan18n")
Photo Date:  9/22/1963  Upload Date: 1/17/2021 7:10:54 AM
Location:  ALTOONA (HORSESHOE C, PA
Author:  Thomas C. Ayers
Categories: 
Locomotives:  PRR 8674(RSD12) PRR 8675(RSD12)
Views:  1090   Comments: 0
PRR 8667, AS-18AM, 1964
Title:  PRR 8667, AS-18AM, 1964
Description:  24th Street. Here is an original photo that I took in Altoona, Pennsylvania, on 29 November 1964. Shown here (R to L) are Pennsylvania Railroad engines #8678, #8674, and #8667. All are AS-18AM's built by the American Locomotive Company and rated at 1,800 horsepower each. #8678 was built in April of 1958, #8674 in March of 1958, and #8667 in February of 1958. They're serving as tail end pushers on a 76-car mixed-cargo freight train (headed by engine #9657) that's on its way up the Allegheny Mountains to Gallitzin, where they'll be uncoupled and returned to East Altoona for further assignment. Partially visible in the background is the 24th Street Bridge. Photo taken from the steps of SLOPE Tower, partially visible at the right.
Photo Date:  11/29/1964  Upload Date: 10/10/2016 4:10:36 AM
Location:  Altoona, PA
Author:  Thomas C. Ayers
Categories:  Bridge,Signal
Locomotives:  PRR 8678(RSD12) PRR 8674(RSD12) PRR 8667(RSD12)
Views:  1242   Comments: 0
PRR 8674, AS-18AM, 1965
Title:  PRR 8674, AS-18AM, 1965
Description:  Slope to Works. Here is an original photo that I took in Altoona, Pennsylvania, on 6 June 1965. Shown here (R to L) are Pennsylvania Railroad engines #8674, #8671, and #8667. All are AS-18M road switchers built by the American Locomotive Company and rated at 1,800 horsepower each. #8674 and #8671 were constructed in March of 1958, while #8667 was built in February of the same year. In this context, they're puling a fully-loaded coal train down the Allegheny Mountains to the Eastbound Receiving Yard in Altoona. (#10 of 44)
Photo Date:  6/6/1965  Upload Date: 4/10/2025 11:20:16 PM
Location:  Altoona, PA
Author:  Thomas C. Ayers
Categories:  Bridge,Signal
Locomotives:  PRR 8674(RSD12) PRR 8671(RSD12) PRR 8667(RSD12)
Views:  578   Comments: 0
PRR 8663, AS-18AM, 1966
Title:  PRR 8663, AS-18AM, 1966
Description:  Waters. Here is an original telephoto view that I took in Altoona, Pennsylvania, in mid-February of 1966. Shown here (R to L) are Pennsylvania Railroad engines #8663, an unidentified unit, and #8674. All are AS-18AM's built by the American Locomotive Company and rated at 1,800 horsepower each. #8663 was built in January of 1958, while #8674 was built in March of 1958. They're pulling a mixed-cargo freight train that's about to pass SLOPE Tower on its way up the Allegheny Mountains to Gallitzin and points West. Photo taken from the steps of SLOPE Tower.
Photo Date:  2/19/1966  Upload Date: 8/22/2016 3:35:27 AM
Location:  Altoona, PA
Author:  Thomas C. Ayers
Categories:  Winter,Signal
Locomotives:  PRR 8663(RSD12) PRR 8674(RSD12)
Views:  1409   Comments: 1
PRR 8674, AS-18AM, 1966
Title:  PRR 8674, AS-18AM, 1966
Description:  Waters. Here is an original telephoto view that I took in Altoona, Pennsylvania, in mid-February of 1966. Shown here (L to R) are Pennsylvania Railroad engines #8674, an unidentified unit, and #8663. All are AS-18AM's built by the American Locomotive Company and rated at 1,800 horsepower each. #8674 was built in March of 1958, while #8663 was built in January of 1958. In this context, they're pulling a mixed-cargo freight train past SLOPE Tower, under the 24th Street Bridge, and up the Allegheny Mountains to Gallitzin and points West. Photo taken from the steps of SLOPE Tower.
Photo Date:  2/19/1966  Upload Date: 8/22/2016 3:37:20 AM
Location:  Altoona, PA
Author:  Thomas C. Ayers
Categories:  RollingStock,Bridge,Winter,Signal
Locomotives:  PRR 8674(RSD12) PRR 8663(RSD12)
Views:  1422   Comments: 0


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