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Sugar Pine Lumber Co. No. 5 “Minaret”
United States | 1927
only one produced
During its time as Consolidated Builders No. 800
During its time as Consolidated Builders No. 800
www.bigbendrailroadhistory.com

The Sugar Pine Lumber Co., founded in 1923, was a logging railroad in the Sierra Nevada in California that called itself the “crookedest railroad ever built”. Nevertheless, they used locomotives with multiple driving axles in one frame. This started with four 2-8-2 saddle tank locomotives built by ALCO. In need for even more power, they even ordered a 2-10-2 saddle tank in 1927.

Given the number 5 and called “Minaret”, it must have been the heaviest saddle tank locomotive ever and most likely also the only 2-10-2ST. After the SPL shut down its operations in 1935, No. 5 was used by several construction contractors. One was the Mason-Walsh-Atkinson-Kier & Co., which used in in the construction of the Grand Coulee Dam and added an additional tender. The last operator was H. J. Kaiser Co., which scrapped it in 1947.

General
Built1927
ManufacturerALCO
Axle config2-10-2ST (Santa Fé) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase35 ft 3 in
Rigid wheelbase19 ft
Service weight267,500 lbs
Adhesive weight213,000 lbs
Axle load42,600 lbs
Water capacity4,000 us gal
Fuel capacityoil
Boiler
Grate area33.5 sq ft
Evaporative heating area2,415 sq ft
Superheater area588 sq ft
Total heating area3,003 sq ft
Power Plant
Driver diameter48 in
Boiler pressure220 psi
Expansion typesimple
Cylinderstwo, 22 x 28 in
Power
Power sourcesteam
Estimated power1,300 hp (969 kW)
Optimal speed16 mph
Starting effort52,796 lbf
Calculated Values
steam locomotive
freight
tank locomotive
switcher
last changed: 07/2024
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