Florida East Coast 4-6-2 "Pacific" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 151 - superheated (Locobase 3138)

Data from FEC 1926 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Relatively lightweight Pacific class that capped the Florida East Coast's acquisition of 87 4-6-2s of similar dimension from 1907-1922. Fitted with 11" (279 mm) piston valves. 141-157 were superheated when produced in 1920-1922; earlier locomotives, procured in 1910-1917, were all superheated to the same standard.

One of these oil burners operated out on Henry Flagler's Florida Keys viaduct and just made it off the exposed line before the 1938 Hurricane swept the entire line away.

Most of these engines were sold to other railroads in the late 30s-early 40s.

Drury's full list of FEC transfers (Drury, 1993, pp. 185-186) can be summarized as follows:

FEC road numbers Dates of transfer Acquiring road numbers

101, 103, 105, 108, 110-112,

115, 117-123, 125 1930 Atlanta, Birmingham & Coast


109 1930 Louisiana & Arkansas 309

127-129, 132-135, 144 1934-1937 Georgia & Florida 501-508

149, 151-152 156 1941 G & F 509-512

130 1934-1937 Georgia Northern


131, 142-143, 145-146, 154 1934-1935 Atlanta & St Andrews Bay

(same numbers)

136, 141 1936, 1935 Savannah & Atlanta 752, 751

150, 155 1942 Appalachicola Northern 510, 515

157 1941 Columbia, Newberry & Laurens

Twelve of the AB & C engines later were renumbered by the Atlantic Coast Line, three of the AB & Cs (76, 78, and 85) went to the Appalachicola Northern as 301, 300, and 302, respectively, both of the AN's acquistions wound up as Kansas City, Mexico & Orient engines 152-153, and one of the A & St AB locomotives was sold to the CN & L as their 154.

Alco-Schenectady works numbers for some in the class included:

50143-50147 (road 98-102) in 1911

53892-53903 (road 103-114) in 1911

60167-60171 in 1920


Class 65 (Locobase 5716)

Data from FEC 1926 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

The first in a long line of FEC Pacifics over a 15-year period. The American Engineer & Railroad Journal (February 1908) noted that using the Walschaerts valve motion on the Pacific wheel arrangement offered difficulties because the front driving axle was so close to the cylinder. The article described Schenectady's solution was "one of the simplest and the best".

These batches - delivered between 1907 and 1910 - were followed by several dozen more. Other than an increase in cylinder diameter to 22" and the introduction of superheating, all of the locomotives were very similar in size and weight. (See Locobase 11033 for the superheated version of this class and Locobase 3138 for the 22" version.)

Class 65 - superheated (Locobase 11033)

Data from FEC 1926 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

As noted in 5716, this class originally was delivered with saturated-steam boilers. When the FEC superheated them, they retained the essentials of the original design in most cases and simply swapped tubes for flues. 5 engines (65, 80, 83, 90, 96) received 22" cylinders; their specs closely resembled those of the later class shown in Locobase 3138.

Most were scrapped in 1929-1930, although #69 and 88 went to the Georgia Northern in 1930 as their 106 and 108, 80 traveled to the Savannah & Atlanta in 1935 as their engine #750, and the 96 ended up as Georgia & Florida 500 in 1941.

Specifications by Steve Llanso of Sweat House Media
Class151 - superheated6565 - superheated
Locobase ID3138 5716 11,033
RailroadFlorida East CoastFlorida East CoastFlorida East Coast
Number in Class573126
Road Numbers98-136, 141-15765-74, 77-9766-74, 77-79, 81-82, 86-89+
Number Built5731
Valve GearWalschaertWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)12.3312.3312.33
Engine Wheelbase (ft)32.5932.5832.58
Ratio of driving wheelbase to overall engine wheebase 0.38 0.38 0.38
Overall Wheelbase (engine & tender) (ft)63.5460.1760.17
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)126,500125,000125,000
Engine Weight (lbs)204,000198,500198,500
Tender Loaded Weight (lbs)162,000141,000141,000
Total Engine and Tender Weight (lbs)366,000339,500339,500
Tender Water Capacity (gals)730060006000
Tender Fuel Capacity (oil/coal) (gals/tons)350035003500
Minimum weight of rail (calculated) (lb/yd)706969
Geometry Relating to Tractive Effort
Driver Diameter (in)686868
Boiler Pressure (psi)180200200
High Pressure Cylinders (dia x stroke) (in)22" x 26"20" x 26"20" x 26"
Tractive Effort (lbs)28,31426,00026,000
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.47 4.81 4.81
Heating Ability
Firebox Area (sq ft)160160.40165
Grate Area (sq ft)47.1046.8047.10
Evaporative Heating Surface (sq ft)211125712112
Superheating Surface (sq ft)440442
Combined Heating Surface (sq ft)255125712554
Evaporative Heating Surface/Cylinder Volume184.54271.95223.40
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation847893609420
Same as above plus superheater percentage9919936011,021
Same as above but substitute firebox area for grate area33,69632,08038,610
Power L112,253808716,579
Power MT640.63427.89877.21


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