Interstate 4-4-0 "American" Type Locomotives

Class Reply to RFP? (Locobase 6075)

Data from 1952 Interstate diagram book provided by Allen Stanley from his extensive collection in March 2004.

Can't tell anything about when this locomotive came to the Interstate. In fact, it appears that this was a proposal from Baldwin for a single Eight-wheeler that was never actually produced. Firebox heating surface included 12 sq ft of brick arch.

Specifications
ClassReply to RFP?
Locobase ID6075
RailroadInterstate
Whyte4-4-0
Road Numbers
GaugeStd
BuilderBaldwin
Year1916
Valve GearSouthern
Locomotive Length and Weight
Driver Wheelbase8'
Engine Wheelbase23'
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender)58.83'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers98000 lbs
Engine Weight147000 lbs
Tender Light Weight100000 lbs
Total Engine and Tender Weight247000 lbs
Tender Water Capacity5000 gals
Tender Fuel Capacity (oil/coal)10 tons
Minimum weight per yard of rail on which locomotive could run82 lb rail
Geometry Relating to Tractive Effort
Driver Diameter66"
Boiler Pressure200 psi
Cylinders (dia x stroke)20" x 24"
Tractive Effort24727 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.96
Heating Ability
Firebox Area168 sq. ft
Grate Area31 sq. ft
Evaporative Heating Surface1780
Superheating Surface376
Combined Heating Surface2156
Evaporative Heating Surface/Cylinder Volume203.97
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6200
Same as above plus superheater percentage7440
Same as above but substitute firebox area for grate area40320
Power L115136
Power MT681.00

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.