These locomotives saw duty in both freight and passenger service. CB&Q was very pleased with the Class O-5 and after some modification to the design began building its own. Between 1936 and 1940 it built 28 Class O-5a Northerns (road numbers 5608 through 5635) in its own shops in W. Burlington, IA.
All 36 of these locomotives had 74" drivers, 28 x 30 cylinders, 250 psi boiler pressure, and had a traction effort of 67,500 lbs. The first eight weighed 461,000 lbs and the balance weighed 473,700 pounds.
There are four survivors: number 5614 on display in a city park in St. Joseph, MO; number 5629 at the Colorado Railroad Museum in Golden, CO; number 5631 at a depot in Sheridan, WY and number 5633 at the Douglass Railroad Interpretive Center which is located at the C&NW Depot in Douglass, WY.
| Class | Road Numbers | Year Built | Builder |
|---|---|---|---|
| O-5 | 5600-5607 | 1930 | Baldwin |
| O-5a | 5608-5635 | 1936-1940 | CB&Q |
| Specifications for Class O-5 | |
|---|---|
| Wheel Arrangement: | 4-8-4 |
| Length: | 102' -9" |
| Drivers: | 74" dia. |
| Weight on Drivers: | 281,400 lbs |
| Locomotive Weight: | 461,000 lbs |
| Locomotive & Tender Weight: | 838,050 lbs |
| Grate Area: | 106.5 sq ft |
| Cylinders (dia. x stroke): | (2) 28" x 30" |
| Boiler Pressure: | 250 psi |
| Tractive Effort: | 67,500 lbs |
| Tender Capacity: | 18,000 gals. of water and 27 tons of coal. |
| This page last modified: Thursday, 15-May-2008 23:29:22 CDT. | [Contact] | All material © 1999-2008 SteamLocomotive.com |
