There are four survivors: number 4500 at Sunbelt Railroad Historical Trust in Owasso, OK; number 4501 at the Age of Steam Railroad Museum in Dallas, TX; number 4516 at the State Fairgrounds in Sedalia, MO and number 4524 at Grant Beach Park in Springfield, MO.
Based on the CB&Q's O-5 Northern design but with some small differences.. Firebox heating surface included 117.5 sq ft (10.92 sq m) in three thermic syphons and 145 sq ft (13.47 sq m) from the long combustion chamber. Further thermal encouragement came from the Coffin feed water heater. Piston valve diameter measured 14" (356 mm).
The first three engines -- 4500-4502 -- were oil-fired and trailed tenders carrying 6,500 US gallons (24,603 litres) of oil. They ran in passenger service. They were painted blue and white with red letters proclaiming their duty as pulling the Meteor.
The other twelve in the first batch -- 4503 to 4514 -- used coal fuel and pulled freight. Boiler pressure and hence TE varied slightly. These were fitted with Franklin Type E trailing-truck boosters that soon appeared on the earlier engines. All were available for passenger service and were seen on the Meteor and Texas Special. Once the Frisco acquired passenger diesels in 1947, the Frisco placed the 4500s at the head of less-prestigious "General Wood" and "Will Rogers" services.
All 25 engines were "dismissed from service"--as the Frisco described it--in October 1956.
The web site for the restored 4500 gives slightly different measures for heating surfaces.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||St Louis-San Francisco (Frisco/(SLSF)|
|Number in Class||25|
|Locomotive Length and Weight|
|Driver Wheelbase (ft)||19.25|
|Engine Wheelbase (ft)||46.50|
|Ratio of driving wheelbase to overall engine wheebase||0.41|
|Overall Wheelbase (engine & tender) (ft)||92.33|
|Axle Loading (Maximum Weight per Axle) (lbs)||70,620|
|Weight on Drivers (lbs)||280,340|
|Engine Weight (lbs)||474,040|
|Tender Loaded Weight (lbs)||341,300|
|Total Engine and Tender Weight (lbs)||815,340|
|Tender Water Capacity (gals)||18,000|
|Tender Fuel Capacity (oil/coal) (gals/tons)||24|
|Minimum weight of rail (calculated) (lb/yd)||117|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in)||74|
|Boiler Pressure (psi)||255|
|High Pressure Cylinders (dia x stroke) (in)||28" x 31"|
|Tractive Effort (lbs)||71,188|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.94|
|Firebox Area (sq ft)||524.50|
|Grate Area (sq ft)||88|
|Evaporative Heating Surface (sq ft)||4766|
|Superheating Surface (sq ft)||1508|
|Combined Heating Surface (sq ft)||6274|
|Evaporative Heating Surface/Cylinder Volume||215.72|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||22,440|
|Same as above plus superheater percentage||27,826|
|Same as above but substitute firebox area for grate area||165,847|