Kansas City Southern 4-6-2 "Pacific" Locomotives in the USA

Class H (Locobase 915)

Data from home.insightbb.com/~sammy56/folio/fo43-12.jpg (August 2002). Works numbers were 50621-50628 in March 1912.

Piston valves were a relatively generous 14" (356 mm) in diameter. Firebox heating surface included 37.5 sq ft (3.48 sq m) of arch tubes.

Some of these engines had tuned air horns that emitted a crow's caw, which heralded the approach of the passenger varnish known as the Flying Crow. On this service, they sported gold trim, lettering, and an emblem on the tender.

Modifications included mounting another sand dome on the boiler, moving the bell ahead of the stack, and changing the center driving pair to disc-type wheels.

The 800 and 806 were sold to the Louisiana & Arkansas in February 1939. The others served through World War Two and were scrapped in the 1950s.

Class H-1 (Locobase 916)

Data from home.insightbb.com/~sammy56/folio/fo43-13.jpg (August 2002). Works numbers were 61518-61520 in October 1919.

H-1s were essentially repeats of the H class (Locobase 915), but were slightly heavier. They also used 14" (356 mm) piston valves for steam admission. Hs and H-1s were later rebuilt to stand the higher, 225-lb boiler pressure and achieve the tractive effort shown in this entry. At that point the railroad added 67.5 sq ft (6.27 sq m) of thermic syphons for the arch tubes, while retaining 9.5 sq ft (0.84 sq m) of arch tube surface; this represented a total of 77 sq ft (7.15 sq m) of firebox heating surface.