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Rio Grande class K-36

  (Redirected from D&RGW K-36)

The Denver and Rio Grande Western K-36 class are ten 3 ft (914 mm) narrow gauge, Mikado type, 2-8-2 steam locomotives built for the Denver and Rio Grande Western Railroad (DRGW) by Baldwin Locomotive Works. They were shipped to the Rio Grande in 1925, and were first used along the Monarch Branch and Marshall Pass, but were later sent to the Third Division out of Alamosa. Of the original ten, four are owned by the Durango and Silverton Narrow Gauge Railroad (D&SNG) and five by the Cumbres and Toltec Scenic Railroad (C&TS). Number 485 fell into the turntable pit at Salida and was scrapped in Pueblo in 1955, with many parts being saved.

Denver & Rio Grande Western
K-36 class
Scurve.jpg
Type and origin
References:[1]
Power typeSteam
BuilderBaldwin Locomotive Works
Model12-34 1/4 E
Build date1925
Total produced10
Specifications
Configuration:
 • Whyte2-8-2
 • UIC1′D1′ h2
Gauge3 ft (914 mm)
Driver dia.44 in (1,118 mm)
Loco weight187,100 lb (84.9 t)
Fuel typeCoal
Boiler pressure195 lbf/in2 (1.34 MPa)
CylindersTwo
Cylinder size20 in × 24 in (508 mm × 610 mm)
Valve gearWalschaerts
Loco brakeS-6 (part of 6-ET schedule equipment)
Train brakes6-ET automatic air brakes on all. 480, 481, 482, 486 also have straight air equipment.
All delivered with G-6 equipment new.
Performance figures
Tractive effort36,200 lbf (161.03 kN)
Career
Operators
Numbers480–489
LocaleColorado and New Mexico
Retired1955 (485), 1962-1968
DispositionOne (485) scrapped,remainder operational or preserved

The locomotives are of outside-frame design, with the driving wheels placed between the two chassis frames which support the boiler, but with the cylinders, driving rods, counterweights and valve gear on the outside. This general arrangement is shared with the earlier K-27, K-28 and later K-37 Mikado engines.

Contents

The NameEdit

The locomotives' name of K-36 comes from two different sources. The K in the name comes from the locomotives' wheel arrangement (Mikado), and the 36 stands for 36,200 pounds of tractive effort.

In ServiceEdit

The K-36s were used primarily as freight locomotives out of Alamosa to Durango, and to Farmington, New Mexico, as well as out of Salida to Gunnison (over Marshall Pass) until 1955 and to Monarch on the Monarch Branch until 1956. They were built with special valves to allow brake control between locomotives while double-heading, and were commonly found between Alamosa and Chama, New Mexico. They were heavily used during the pipe boom in Farmington, and hauled long freight trains between Alamosa and Farmington.

In 1937, 3 K-36s, 482, 483, and 489, were equipped with steam heat and signal lines to haul passenger trains like the Shavano and the San Juan Express. Eventually in 1945, 484, 485, and 488, were also equipped, too.

Roster[2][3]Edit

Number Photo Builder's
Number
Current
Owner
Notes
480   58558 D&SNG Retired 1970
Went to Durango and Silverton Narrow Gauge Railroad in March 1981. Operational
481   58559 D&SNG Went to Durango and Silverton Narrow Gauge Railroad in March 1981 and was the first K-36 run to Silverton. Operational
482   58541 D&SNG Retired 1962
Went to Cumbres and Toltec Scenic Railroad in 1970
Traded to Durango and Silverton Narrow Gauge Railroad in October 1991. Operational
483   58584 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970, removed from service in 1977. Almost swapped out with K-28 class 478 in 2015 from the Durango and Silverton Narrow Gauge Railroad

483 also hauled the last scheduled passenger train on the Denver and Rio Grande Western Railroad on May 29, 1965. It was a fan trip from Alamosa, Colorado to Durango, Colorado. Stored in Chama, NM.

484   58585 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
485   58586 N/A Crashed in the turn table pit in Salida. Due to severe injuries, 485 couldn't be saved, and was scrapped on January 24, 1955. Many parts were salvaged and used on other locomotives.
486   58587 D&SNG Retired 1962
Went to Royal Gorge Park for display in December 1967
Went to Durango and Silverton Narrow Gauge Railroad in May 1999. Operational
487   58588 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
488   58589 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
489   58590 C&TS Retired 1962
Went to Cumbres and Toltec Scenic Railroad in 1970. Operational K-36 489

ReferencesEdit

  1. ^ "Denver & Rio Grande Western Mikados". Steam Locomotive dot com. Archived from the original on 21 September 2010. Retrieved 12 February 2010.
  2. ^ "Denver & Rio Grande Western Roster". Rio Grande Modeling & Historical Society. Archived from the original on 22 November 2008. Retrieved 12 February 2010.
  3. ^ "Durango & Silverton Steam". DRGW.net. Retrieved 12 February 2010.