Wabash No. 702 with smoke deflectors.
Wabash 4-6-4 No. 700.
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Wabash Class P1 4-6-4 Semi-Streamlined Steam Locomotive
The Wabash Railroad's class P-1 consisted of seven 4-6-4 steam locomotives.

The first five were constructed in 1943 and 1944 using the boilers from their unsuccessful K-5 class three-cylinder 2-8-2 locomotives that had been built by the American Locomotive Company's Schenectady works in 1925.

Two additional locomotives were converted in 1946 and 1947 using a pair of K-4 class 2-8-2s as donors.

The engines were semi-streamlined with several incorporating the long "elephant ear"-type smoke deflectors. The units were painted blue with a broad white stripe trimmed in red down the side of the locomotive and on the steam dome; the tenders received a similar paint job. The locomotive number was painted on the tender, and in later years the Wabash flag logo was applied to the deflectors. The P1s were in service until 1956.

Scale models exist of the P-1s, most notably in O gauge by MTH and Lionel. An HO (1:87) version was available in brass from Hallmark Models.

Wabash Class P-1 Overview
Type and origin
Power type: Steam
Rebuilt by: Wabash Railroad
Rebuild date: 1943–1947
Number rebuilt: 7
​ • Whyte 4-6-4
 • UIC 2′C2′ h2
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Leading diameter: 36 in (914 mm)
Driver diameter: 80 in (2,032 mm)
Trailing diameter: 42 in (1,067 mm)
Length: 87 ft 5 in (26.64 m)
Width: 10 ft 8 in (3.25 m)
Height: 16 ft 0 in (4.88 m)
Axle load: 72,009 lb (32,663 kg; 32.663 t)
Locomotive weight: 374,690 lb (169,960 kg; 169.96 t)
Total weight: 582,680 lb (264,300 kg; 264.30 t)
Fuel type: Coal
Fuel capacity: 32,000 lb (15,000 kg; 15 t)
Water capacity: 12,000 US gal (45,000 l; 10,000 imp gal)
 • Firegrate area 71 sq ft (6.6 m2)
Boiler pressure: 220 lbf/in2 (1.52 MPa)
Heating surface: 4,225 sq ft (392.5 m2)
​ • Heating area: 1,051 sq ft (97.6 m2)
Cylinders: Two
Cylinder size: 26 in × 28 in (660 mm × 711 mm)
Performance figures
Tractive effort: 44,244 lbf (196.8 kN)
Operator: Wabash Railroad
Road Numbers: 700–706
Retired: 1956
Disposition: All scrapped

See also:

Wabash Railroad

4-6-4 Steam Locomotives

Streamlined Steam Locomotives

2-8-2 Steam Locomotives

Steam Locomotives

American Locomotive Company


Wabash 4-6-4 No. 700 without smoke deflectors.

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Wabash 4-6-4 No. 700.

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Wabash 4-6-4 No. 700 without smoke deflectors.

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Wabash No. 702 with smoke deflectors at Chicago, Illinois in 1948.  Photo by Arthur B. Johnson.