Data from narrowmind.railfan.net and DeGolyer, Vol 72, pp. 248+, Vol 78, pp. 360+, and Vol 79, pp. 361+ Works numbers were 58009 in September 1924, 60486 in May 1928, and 60690 in December.
Prairies a little larger than the 1915-era #9 (Locobase 14256), these had more, but smaller-diameter tubes. All of them served the Maui port of Kahului, transporting construction materials inland and pineapples and sugar cane portward. Relatively large oil-burners with straight stacks; the fuel's properties were described as Standard Oil, gravity of 18-19 degrees with a minimum of 14 degrees. A transportation sales website -- [Data from DeGolyer, Vol 54, pp. 427+. Works number was 41925 in February 1915.
Baldwin's main contribution to this Maui-island common carrier was this mixed-traffic Mogul. The KRR was a subsidiary of "Big Five" sugar company Alexander & Baldwin and used the 9 to move construction materials in from the harbor and processed cane out. The 9 also helped moved quarried rock to the artificial harbor at Kahului then under construction. Like the later 2-6-2s shown in Locobase 4417, this engine was retired in 1950.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
---|---|---|
Class | 10 | 9 |
Locobase ID | 4417 | 14256 |
Railroad | Kahului Railroad | Kahului Railroad |
Country | USA | USA |
Whyte | 2-6-2 | 2-6-2 |
Number in Class | 3 | 1 |
Road Numbers | 10-12 | 9 |
Gauge | 3' | 3' |
Number Built | 3 | 1 |
Builder | Baldwin | Baldwin |
Year | 1924 | 1915 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 8 / 2.44 | 9 / 2.74 |
Engine Wheelbase (ft / m) | 23.17 / 7.06 | 23.83 / 7.26 |
Ratio of driving wheelbase to overall engine wheelbase | 0.35 | 0.38 |
Overall Wheelbase (engine & tender) (ft / m) | 41.23 / 12.57 | 45.04 / 13.73 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 60,200 / 27,306 | 66,000 / 29,937 |
Engine Weight (lbs / kg) | 81,800 / 37,104 | 90,000 / 40,823 |
Tender Loaded Weight (lbs / kg) | 49,057 / 22,252 | 44,000 / 19,958 |
Total Engine and Tender Weight (lbs / kg) | 130,857 / 59,356 | 134,000 / 60,781 |
Tender Water Capacity (gals / ML) | 2000 / 7.58 | 2200 / 8.33 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 650 / 2460 | 900 / 3407 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 | 37 / 18.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 40 / 1016 | 40 / 1016 |
Boiler Pressure (psi / kPa) | 185 / 12.80 | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 20" / 356x508 | 14" x 20" / 356x508 |
Tractive Effort (lbs / kg) | 15,411 / 6990.32 | 14,994 / 6801.17 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.91 | 4.40 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 176 - 1.75" / 44 | 137 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 12.50 / 3.81 | 13.50 / 4.11 |
Firebox Area (sq ft / m2) | 68 / 6.32 | 67 / 6.22 |
Grate Area (sq ft / m2) | 17.10 / 1.59 | 13.90 / 1.29 |
Evaporative Heating Surface (sq ft / m2) | 1069 / 99.35 | 1029 / 95.63 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1069 / 99.35 | 1029 / 95.63 |
Evaporative Heating Surface/Cylinder Volume | 300.28 | 289.04 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 3164 | 2502 |
Same as above plus superheater percentage | 3164 | 2502 |
Same as above but substitute firebox area for grate area | 12,580 | 12,060 |
Power L1 | 4881 | 4598 |
Power MT | 536.25 | 460.77 |