Fairbanks-Morse H12-44 Phases

H12-44 Builder List | H12-44 Rosters

Phase I – May, 1950, to January, 1951

Fairbanks Morse H12-44 Phase I – Milwaukee Road 1826 at Milwaukee, Wisconsin, May 12, 1951. This phase is noted for it’s full Raymond Lowery styling elements, three sets of large louvers above the door line in front of the cab, and a lack of any ventilation on the hood except for a single screened opening in the first door behind the radiator.
Fairbanks Morse H12-44 Phase I – Milwaukee Road 1826 at Milwaukee, Wisconsin, May 12, 1951. This phase is noted for it’s full Raymond Lowery styling elements, three sets of large louvers above the door line in front of the cab, and a lack of any ventilation on the hood except for a single screened opening in the first door behind the radiator.

Only 18 phase I units were built:

  • ATSF 503-506
  • Chicago & North Western 1071-1072
  • Milwaukee Road 1826-1827
  • New York Central 9111-9120

The first H12-44’s were simply H10-44’s with fuel rack settings modified to yield another 200 horsepower. They were indistinguishable externally from the final phase of the earlier model.

Raymond Lowery’s design elements continued:

  • The nose is swept back at a steep angle, topped by decorative crest
  • A curved panel extends from the cab to the front of the battery box
  • The roof extends well over the walkway behind the cab

The phase I units are noted for having three sets of very large louvers above the hood doors near the cab. There is a single opening in the hood doors, a screened panel directly behind radiator.

Fairbanks Morse discontinued using it’s round builder plate during this phase, switching to their new rectangular plate on the New York Central engines.

Phase Ia – January, 1951, to June, 1952

FM H12-44 Phase Ia - US Steel GE11 in a builder photo at Beloit, Wisconsin, February, 1952. A second screened opening is added behind the radiator, two screened openings are now in the door in front of the battery box, and another screened opening is above the battery box in the second door from the cab.
FM H12-44 Phase Ia – US Steel GE11 in a builder photo at Beloit, Wisconsin, February, 1952. A second screened opening is added behind the radiator, two screened openings are now in the door in front of the battery box, and another screened opening is above the battery box in the second door from the cab.

There were 85 phase Ia units built:

  • ATSF 507-516
  • Baltimore & Ohio 310-319
  • Kentucky & Indiana Terminal 60-64
  • Milwaukee Road 1828-1847 and 2300-2309
  • Minnesota Western 10
  • New York Central 9121-9137
  • US Steel Fairless Works GE9-GE16
  • Weyerhouser 1

Four screened openings are added in the hood doors. There are now two openings behind the radiator, a pair of openings in the door in front of the battery box step, and a short opening above the battery box in the first door in front of the cab.

Phase Ib – June to September, 1952

FM H12-44 Phase Ib - ATSF 523, date, location and photographer unknown. The bank of three groups of large louvers at the top of the hood has been replaced with a screened opening in front of the cab, and a box with two sets of louvers.
FM H12-44 Phase Ib – ATSF 523, date, location and photographer unknown. The bank of three groups of large louvers at the top of the hood has been replaced with a screened opening in front of the cab, and a box with two sets of louvers.

Only 15 Phase Ib units were built:

  • ATSF 517-530
  • Soo Line 315

The three banks of large louvers are replaced by a Phase II-style raised box with two sets of louvers.

Soo Line 315, built before the Santa Fe units, was slightly different in that it had two screened openings above the battery box, rather than one. This may have been at the customer’s request, an experiment, or something added by the railroad after construction.

Here is a photo of Soo Line 315 at rrpicturearchives.net.

Phase II – September, 1952, to February, 1953

FM H12-44 Phase II – Southern Pacific 1488 at Tucson, Arizona, date and photographer unknown. A completely new carbody eliminates the Lowery decorative touches except for the curved skirting from the cab to the front of the battery box. Gone are the sloped front of the hood and it’s decorative crest, and the overhanging rear of the cab roof.

There were 46 Phase II units built:

  • Chicago & North Western 1110-1113
  • Indianapolis Union Railway 19-21
  • Pennsylvania Railroad 8711-8723
  • Southern Pacific 1486-1491
  • US Army 1858-1862

Phase II was a complete redesign of the carbody. Most of the Raymond Lowery styling elements are gone. The cab roof no longer extends over the rear walkway, and the sloped front of the hood with it’s decorative crest is gone. All that remains is the curved panel between the cab and the front of the battery box. Look closely, however, and notice that the hood vents have not changed from the Phase Ib units.

Phase III – February, 1953, to December, 1955

FM H12-44 Phase III – Southern Pacific 2361 at Santa Clara, California, 1973. Photographer: Clint Nestell. The last vestige of Lowery styling is removed: the curved panel from the cab to the front of the battery box. Louvers are added to the four battery boxes to prevent explosions. Hood ventilation is modified so that the screened opening at the top of the hood in front of the cab has been replaced with two banks of heavy louvers.

There were 67 phase III units:

  • ATSF 531-549
  • Baltimore & Ohio 196-197
  • Central of Georgia 315-318
  • Chicago & North Western 1114-1116
  • Fairbanks Morse 76
  • Kentucky & Indiana Terminal 65-66
  • Milwaukee Road 2310-2325
  • Nickel Plate 134-138
  • Pennsylvania Railroad 8708-8710
  • Sandersville 100
  • Soo Line 316-319
  • Southern Pacific 1529-1538
  • Tennesee Valley Authority 22
  • Wabash 384-386

The final element of Raymond Lowery styling is removed: the curved panel between the cab and the front of the battery box. Four sets of louvers are added to the battery boxes to eliminate the risk of explosion. The square screened opening above the door line near the cab has been replaced with two sets of heavy louvers.

Phase IIIa – January to May, 1956

FM H12-44 Phase IIIa - ATSF FM 551 at Kansas City, Missouri, August 14, 1971. The screened openings are all replaced with banks of heavy louvers.
FM H12-44 Phase IIIa – ATSF FM 551 at Kansas City, Missouri, August 14, 1971. The screened openings are all replaced with banks of heavy louvers.

There were 20 Phase IIIa units:

  • ATSF 550-568
  • Columbia & Cowlitz D2
  • Southern Pacific 1568-1576
  • Yankeetown Dock D2

The screened openings in the hood doors were all changed to sets of heavy louvers.

Phase IV – October, 1956 to February, 1957

FM H12-44 Phase IV - Southern Pacific 2378 at Santa Clara, California, 1973. Photographer: Clint Nestell. The carbody has been shortened three feet The battery box is half the size it was in Phase III units. A screen slot is present in the second door in front of the battery box.
FM H12-44 Phase IV – Southern Pacific 2378 at Santa Clara, California, 1973. Photographer: Clint Nestell. The carbody has been shortened three feet The battery box is half the size it was in Phase III units, and the side skirt below the walkway is now deeper. A screen slot is present in the second door in front of the battery box.

There were 18 Phase IV units:

  • Southern Pacific 1577-1596

The carbody has been shortened by three feet. The battery box is reduced to half the size it was previously. he side skirt below the walkway is deeper. A small screen opening present in the second door in front of the battery box. The radiator fan and traction motor blowers are now belt driven instead of using electric motors.

Phase IVa – March, 1957, to March, 1961

FM H12-44 Phase IVb - Norfolk & Western 2149 at Brewster, Ohio, April 8, 1975. Photographer: unknown. The small screen slot in front of the battery box has been replaced with a bank of large louvers.
FM H12-44 Phase IVb – Norfolk & Western 2149 at Brewster, Ohio, April 8, 1975. Photographer: unknown. The small screen slot in front of the battery box has been replaced with a bank of large louvers.

There were 30 Phase IVa units:

  • Ayshire Collieries 1
  • ATSF 559-564
  • Baltimore & Ohio 9722-9726
  • Chihuahua al Pacifico 70
  • Nickel Plate Road 139-155

The slot in the door in front of the battery box step has been replaced with a large bank of louvers.