The reference for locomotives and railcars
Manitou & Pikes Peak Cog Railway No. 6
United States | 1906 | only one produced
Railway and Locomotive Engineering, November 1906

The Manitou & Pikes Peak Cog Railway, opened in 1891, provides an access to the famous mountain in Colorado. It starts in Manitou Springs at an elevation of 6,320 ft (1,930 m) and reaches the top at 14,115 ft (4,302 m). While its steepest section has a gradient of 25 percent, the average is twelve percent. All of its steam locomotives were built by Baldwin, with No. 6 being delivered in 1906.

No. 6 was the first one to be fired with oil. After its older sisters were rebuilt as four-cylinder Vauclain compounds, it was built this way and had its axles turned by levers instead of direct connecting rods. The boiler and the cab were inclined by 16 percent to compensate for the gradient. As opposed to most of its sisters, it is not preserved today since it was scrapped in 1955.

Axle config0-6-0RT (Abt)
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase10 ft 3 59/64 in
Service weight60,000 lbs
Adhesive weight60,000 lbs
Axle load20,000 lbs
Water capacity600 us gal
Fuel capacity325 lbs (oil)
Power sourcesteam
Estimated power300 hp (224 kW)
Optimal speed7 mph
Starting effort25,284 lbf
Power Plant
Driver diameter22.5 in
Boiler pressure210 psi
Expansion typecompound
Cylindersfour, HP: 10 x 24 in
and LP: 15 x 24 in
Grate area19.7 sq ft
Firebox area58.3 sq ft
Tube heating area546.7 sq ft
Evaporative heating area605 sq ft
Total heating area605 sq ft
Calculated Values
steam locomotive
tank locomotive
cog railway
Vauclain compound
last changed: 04/2024

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